Ordering information regarding a Erythrocyte Sedimentation Rate test for Clinical Diagnostic Laboratories. Erythrocyte Sedimentation Rate (ESR) Ordering Recommendation Methodology The ESR test measures the rate at which red blood cells (erythrocytes) settle at the bottom of a test tube over a period of one hour. Inflammation causes red blood cells to clump together, making them heavier and causing them to fall more quickly1. The distance the red blood cells fall is measured and reported as the ESR. Performed Mon-Sat Reported Within 24 hours New York DOH Approval Status This test is New York DOH approved. Specimen Required Patient Preparation: Collect: Purple top tube Specimen Preparation: Allow serum tube to clot completely at room temperature. Separate serum or plasma from cells ASAP within 30 minutes of collection. Transfer 1 mL serum or plasma to a Standard Transport Tube. (Min: 0.3 mL) Storage/Transport Temperature: Unacceptable Conditions: Remarks: Stability: Reference Interval Components Available Separately Reference Interval By report (reports may vary based on instrumentation) Interpretive Data Note CPT Code 80048 Components Component Test Code Component Chart Name LOINC Aliases

Frequently asked questions 01 What is the CDL Partnership Program? The CDL Partnership Program is a free affiliate initiative that allows you to monetize your audience by promoting our online laboratory panels. When someone places an order using your unique discount code, you earn a commission on that sale. It’s a simple way to generate income while helping others access high‑quality diagnostic testing. 02 How do I earn commission as a CDL Affiliate? You earn commission whenever a customer purchases one of our online laboratory panels through your unique referral link or discount code. All referrals are automatically tracked from the moment they click your link through checkout, ensuring you receive credit for every qualifying sale. 03 When and how are commissions paid? Commissions are paid biweekly, and every referral you generate is tracked internally to ensure accuracy. As a partner, you’ll have full visibility into your activity through our shared tracking system, where you can view all sales and referral data in real time. Payments are issued once you’ve earned at least $50 within a pay period; if you don’t meet the minimum, your balance simply rolls over to the next cycle. If you want to refine payout rules, you can explore commission structure or payout thresholds. 04 Are there any costs involved in joining? No. The CDL Partnership Program is completely free to join. There are no fees, subscriptions, or required purchases. 05 Is there a cap on how much I can earn? No — there is no earning cap. Your income potential is entirely based on your audience size, engagement, and referral activity. 06 How can I keep track of my performance and earnings? Once your application is approved, you’ll receive access to our affiliate tracking spreadsheet, which provides a clear overview of your performance. Inside the dashboard, you can monitor your total sales, referral activity, earned commissions, and payout status—all in one place. This ensures you always have transparent, up‑to‑date insight into how your affiliate efforts are performing. If you want to enhance this section further, you can explore performance tracking or analytics best practices. 07 Who can I contact for CDL Partnership support? For questions or support, email our affiliate team at info@clinicaldiagnosticlab.com using the subject line: Re: Affiliate Support 08 How do I get my affiliate link and discount code? Affiliates receive their unique link and code immediately after approval, along with onboarding instructions. 09 How do I get lab results to use in the app? In order to get lab results to use within the app, you can download your lab results as a PDF from CDL's patient portal. Then, you can drag and drop the pdf or upload the PDF into the app. 10 Is this medical advice? No, no. The app gives general wellness tips and suggestions only. None of the suggestions provided in this app should be considered as medical advice. Always talk to a physician for specific suggestions tailored to your unique condition(s). 11 Can I view my Lab Results through this App? You can only view lab results you upload into the app. This app does not have direct service to our laboratory's LIS or patient portal. 12 Is my Data Safe? Yes, your data stays private, secure, and is uniquely saved to your own personal account. 13 Is the App Free? Yes, our app is 100% to patients of Clinical Diagnostic Laboratories. 14 Will This App Tell Me What is Wrong With Me? No. The app does not tell you what is wrong with you, and it does not diagnose any health problems. Only a doctor or licensed medical professional can do that. What the app can do is help you understand your lab numbers in a simple way and suggest potential solutions to achieve optimal lab results. It can show you trends, explain what certain markers usually relate to, and give you general wellness ideas. Think of it like a friendly guide that helps you make sense of your information — not a doctor and not a replacement for medical care. 15 Do I need to schedule an appointment if I purchase the test online? Yes — once you place your order, you'll be prompted to schedule an appointment at one of our laboratory locations. Walk-ins are not permitted for prepaid panels to ensure proper time is set aside for your visit. 16 Will I receive a kit in the mail? No — there is no kit mailed to your home. All testing is performed in our certified laboratory. After purchasing your panel, you'll simply come in for your scheduled blood draw. 17 Do I need to bring anything to my appointment? Just bring a valid photo ID and your email confirmation. There’s no insurance information needed — we’ve already got you in the system. 18 Do I need a doctor’s referral to order a test? Not at all. Our panels are available without a referral, prescription, or insurance. That’s part of what makes this process simple and accessible. 19 How will I receive my results? Results are delivered securely via email in PDF format within 2–5 business days. You’ll be notified as soon as they’re ready. 20 Can I use my HSA or FSA card? Yes — many patients successfully use HSA/FSA cards at checkout. Be sure to check with your plan provider for eligibility. 21 Can I get reimbursed by my insurance? Yes — depending on your insurance policy, you may be eligible for reimbursement by submitting your receipt directly to your provider. However, reimbursement is not guaranteed. Some insurance plans do not cover specific tests or may require additional documentation before testing. We strongly recommend contacting your insurance provider in advance to understand your options, if you wish to be reimbursed. 22 Is there a cancellation fee? Yes — if you cancel your order after purchasing online, a small cancellation fee of 3.4% will be applied to cover non-refundable transaction processing costs. 23 Are you Available for Walk-Ins or Do I Need to Schedule an Appointment? You are not required to schedule an appointment at our facility. We are available for walk-ins during the weekdays during our standard operating hours. However, we do recommend patients schedule appointments ahead of time, contact us via our email form, or call in advance to verify the availability of a Phlebotomist (if bloodwork is required). 24 How Long Does it Take to Receive my Lab Results? The turnaround time of a test varies depending on the test(s) being administered. Typically, a test will take around 24-72 hours. We recommend contacting us ahead of time for more details based on the specific test being administered. 25 I received my results but I'm having trouble opening them Results sent directly to your email will typically be password protected for your security. Passwords will be the Date of Birth of the patient in the following order: (Year/Month/Day). For example, if you're Date of Birth is January 31, 1980 your password will be the following: [1980/01/31] 26 How Will My Results be Delivered? If you provided a doctor's order/referral your results will be sent over directly to your referring physician. You can contact your physician directly for the results of your test (if they did not already contact you). If an order was not provided, you will receive your results via email. Your results will be delivered as a password protected PDF file. 27 How Long Does it Take to Receive COVID test results? The standard turnaround time for PCR-COVID test results is 24 hours. 28 What types of tests do you offer? We offer a wide variety of medical tests including, but not limited to, H.Pylori, Drug screenings, STD testing, COVID, FLU, standard blood panels, and far more. Please contact us for more information. 29 Are Children Permitted to Take a COVID test? Yes, children can take the PCR-Covid test. The cost of the test is the same for children. 30 Are there other options besides a Nasal Swab for the PCR-COVID test? The most effective method of testing for the COVID-19 Coronavirus is via a Nasopharyngeal swab. A cheek or throat swab can also be performed at the request of a physician; however, either of these methods can be inaccurate and may result in an inconclusive lab result. 31 What is the Difference Between a Rapid Test and a PCR test? The Rapid test (also known as the Antigen test) offers a fast turnaround time but is best used on patients showing symptoms. However, the rapid test results tend to be inaccurate when compared to the RT-PCR test. One can expect the results of a Rapid Test within 15 minutes. The RT-PCR (Polymerase Chain Reaction) test is considered the “Golden Standard” with regards to COVID tests. The PCR test is considered the more accurate version when testing for the COVID-19 virus. 32 Do I Need to Pick Up my Results in Person? While you may pick up results in person, the delivered lab results will be sent to your physician directly either through their portal or via fax. If an order was not provided, results will be sent to the email address provided when you schedule an appointment. 33 How do I Access my lab Results? If you came with a doctor’s order, Clinical Diagnostic Laboratories (CDL) will fax your lab results to your doctor’s office. We will also try to email results in a timely manner. However, if you do not receive your results after the given time frame, please follow up with CDL by emailing us at info@clinicaldiagnosticlab.com or call us at 703-430-1111. The email will be from labreport@clinicaldiagnosticlab.com*. Your date of birth in the format ‘YYYYMMDD’ is your password to be used to open this report. *Note: Always check your spam/junk mail if you have not received your results in your standard inbox! **The easiest method of finding your results is to type the email address “labreport@clinicaldiagnosticlab.com” in your email’s search bar as results are often difficult to find when sent to the spam/junk folder.

Ordering information regarding a C-Reactice Protein test for Clinical Diagnostic Laboratories. C-Reactive Protein Ordering Recommendation Preferred test to detect acute phase inflammation (eg, autoimmune diseases, connective tissue disease, rheumatoid arthritis, infection, or sepsis). DO NOT ORDER for cardiovascular disease (CVD) risk assessment. Test for CVD risk assessment is C-Reactive Protein, High Sensitivity Methodology Quantitative Immunoturbidimetry Performed Mon-Sat Reported Within 24 hours New York DOH Approval Status This test is New York DOH approved. Specimen Required Patient Preparation: Collect: Plasma separator tube, or serum separator tube SST Specimen Preparation: Allow serum tube to clot completely at room temperature. Separate serum or plasma from cells ASAP within 30 minutes of collection. Transfer 1 mL serum or plasma to a Standard Transport Tube. (Min: 0.3 mL) Storage/Transport Temperature: Specimens collected in EDTA, citrate, or oxalate. Unacceptable Conditions: Hemolyzed specimens. Remarks: Stability: After separation from cells: Ambient: Calcium and CO2: 4 hours, All others: 24 hours; Refrigerated: 1 week; Frozen: 2 weeks Reference Interval Components Available Separately Reference Interval By report (reports may vary based on instrumentation) Interpretive Data By report (reports may vary based on instrumentation) Note CPT Code 86140 Components Component Test Code Component Chart Name LOINC 0050180 C-Reactive Protein 1988-5 Aliases C- Reactive Protein C- Reactive Protein, S CRP CRP, S CRP, Serum Protein, C-Reactive

If you're a physician, use this page to access your portal with Clinical Diagnostic Laboratories. Click Here CLICK HERE Physician Registration Are you a physician that would like to work with our laboratory? Click here to register an account with us. View More Click Here CLICK HERE Physician Login If you're a physician currently working with us, click here to login. View More Contact Us

Ordering information regarding a Thyroid Stimulating Hormone test for Clinical Diagnostic Laboratories. Thyroid Stimulating Hormone (TSH) Ordering Recommendation Preferred test for initial screening and monitoring of thyroid function. Methodology Quantitative Electrochemiluminescent Immunoassay (ECLIA) Performed Mon-Sat Reported Within 24 hours New York DOH Approval Status This test is New York DOH approved. Specimen Required Patient Preparation: Collect: Plasma separator tube, or serum separator tube SST Specimen Preparation: Separate serum or plasma from cells ASAP or within 2 hours of collection. Allow serum specimen to clot completely at room temperature. Storage/Transport Temperature: Refrigerated. Unacceptable Conditions: Grossly hemolyzed specimens. Remarks: Stability: After separation from cells: Ambient: Calcium and CO2: 4 hours, All others: 24 hours; Refrigerated: 1 week; Frozen: 2 weeks Reference Interval Components Available Separately Reference Interval Interpretive Data Note CPT Code 84443 Components Component Test Code Component Chart Name LOINC 0070145 Thyroid Stimulating Hormone 3016-3 Aliases Thyrotropin TSH TSH, Pregnancy

Ordering information regarding Creatinine for Clinical Diagnostic Laboratories. Creatinine, Serum or Plasma Ordering Recommendation Screening test to evaluate kidney function. Methodology Quantitative Enzymatic Assay Performed Mon-Sat Reported Within 24 Hours New York DOH Approval Status This test is New York DOH approved. Specimen Required Patient Preparation: Collect: Plasma separator tube or serum separator tube. Specimen Preparation: Allow serum tube to clot completely at room temperature. Separate serum or plasma from cells within 2 hours of collection. Transfer 1 mL serum or plasma to a standard transport tube. (Min: 0.2 mL) Storage/Transport Temperature: Refrigerated. Unacceptable Conditions: Specimens obtained through catheters used to infuse hyperalimentation fluid. Specimens with potassium oxalate/sodium fluoride, citrate, or EDTA as anticoagulants. Remarks: Stability: After separation from cells: Ambient: 1 week; Refrigerated: 1 week; Frozen: 3 months Reference Interval By Report Interpretive Data Note Assay interference (negative) may be observed when high concentrations of N-acetylcysteine (NAC) are present. Negative interference has also been reported with NAPQI (an acetaminophen metabolite) but only with concentrations at or above those expected during acetaminophen overdose. CPT Code 82565 Components Component Test Code Component Chart Name LOINC 0020025 Creatinine, Serum or Plasma 2160-0 3004293 UH EGFR Aliases Blood Creatinine Serum Creatinine

Ordering information regarding Clozapine for Clinical Diagnostic Laboratories. Clozapine and Metabolites, Serum or Plasma, Quantitative Ordering Recommendation Optimize drug therapy and monitor patient adherence. Methodology Quantitative Liquid Chromatography-Tandem Mass Spectrometry Performed Mon-Sat Reported 1-5 Days New York DOH Approval Status This test is New York DOH approved. Specimen Required Patient Preparation: Timing of specimen collection: Predose(trough) draw - at steady -state concentration. Collect: Plain red. Also acceptable: Lavender (K2 or K3EDTA) or pink (K2EDTA). Specimen Preparation: Separate serum or plasma from cells within 2 hours of collection. Transfer 1 mL serum or plasma to a standard transport tube.(Min: 0.5 mL) Storage/Transport Temperature: Refrigerated. Unacceptable Conditions: Whole blood. Gel separator tubes, light blue (citrate), or yellow (SPS or ACD solution). Remarks: Stability: After separation from cells: Ambient: 24 hours; Refrigerated: 1 week; Frozen: 3 months Reference Interval Therapeutic Range Not well established Toxic Level Total Clozapine and Metabolites: Greater than or equal to 1500 ng/mL Interpretive Data Therapeutic ranges are not well established. Clozapine is metabolized to norclozapine and clozapine-N-oxide. Clozapine concentrations between 100 and 700 ng/mL may correlate more with clinical response; however, nonresponsiveness may also occur within this range. For refractory schizophrenia, clozapine concentrations greater than 350 ng/mL are suggested to achieve a therapeutic response. Toxicity: Adverse effects to clozapine therapy may include tachycardia, drowsiness, hypotension, and seizures. Therapeutic and toxic ranges are not well established in children. Note CPT Code 80159 Components Component Test Code Component Chart Name LOINC 2013458 Clozapine, S/P, Quant 6896-5 2013459 Norclozapine, S/P, Quant 10992-6 2013460 Clozapine-N-Oxide, S/P, Quant 85497-6 2013461 Total Clozapine and Metabolites 12375-2 Aliases Clopine Clozaril Denzapine FazaClo Versacloz Zaponex

Ordering information regarding an HPV Self Collection Screen for Clinical Diagnostic Laboratories. HPV Self-Collection Screening (HPV-SCS) Ordering Recommendation The HPV Cervical Cancer Self-Collection Test is a highly sensitive screening tool that enables patients to collect their own vaginal sample using an FDA-approved device. After collection, the specimen is processed using advanced nucleic acid amplification methods (typically PCR-based) to qualitatively detect high-risk HPV DNA associated with cervical cancer. This self-collected approach offers comparable diagnostic accuracy to traditional clinician-collected samples while minimizing discomfort and barriers associated with pelvic examinations, making it an effective option for early detection and timely clinical follow-up. Mnemonic HPV Self-Collection Screening (HPV-SCS) Methodology The specimen is processed using nucleic acid amplification techniques (generally PCR-based methods) to qualitatively detect the presence of high-risk HPV DNA. Performed Mon-Sat Reported Within 3-5 days Specimen Required Patient Preparation: Collect: Wash your hands and remove the sterile self-collection device before gently inserting it into the vagina up to the indicated marker. Rotate the device 2–3 times as instructed to collect an adequate sample, then carefully withdraw it. Refrain from douching, using intravaginal medications, or applying topical agents for at least 48 hours prior to collection. • Avoid sexual intercourse for 24–48 hours before sample collection. • If menstruating, confirm with the provider whether sample collection should be postponed until menses have ceased. Specimen Preparation: Immediately place the collection device into the provided vial containing the appropriate viral transport medium. Secure the vial cap tightly and gently invert the vial to mix the specimen with the medium. Ensure that the specimen is labeled accurately with patient identification and collection date/time. Storage/Transport Temperature: Maintain at 2–8°C during storage and transport. Avoid freezing unless the test kit instructions specifically allow it. Prompt transport to the laboratory is advised to maintain sample integrity. Unacceptable Conditions: Specimens that are unlabeled or improperly labeled. Inadequate sample volume or insufficient cellular material. Contaminated samples (e.g., with menstrual blood or external substances) beyond acceptable limits. Specimens showing leakage or compromised container integrity. Samples exposed to temperatures outside the recommended range prior to processing Remarks: Specimen source required. Stability: Reference Interval Negative Interpretive Data A positive result should be correlated with clinical history and may necessitate additional diagnostic procedures. Careful patient education on follow-up steps and interpretation of results is essential. This test should be used as a screening tool only; abnormal findings must be evaluated in conjunction with other clinical assessments. Note CPT Code 87624 Aliases HPV Cervical Cancer Self-Collection Self-Collected HPV Test HPV DNA Test (Self-Collected) Cervical HPV Self-Sampling

Learn why our practice no longer accepts PPO insurance or Anthem HealthKeepers, what this change means for your care, and how we continue to prioritize accessible, patient‑focused treatment. Dear Valued Patient, We understand that navigating lab testing and insurance coverage can be confusing, stressful, and sometimes frustrating. Many patients expect that medically necessary lab tests will be fully covered by their insurance, only to be surprised by bills or claim denials. We want to take a moment to explain why this happens, and what options are available to you. Why Insurance Coverage Can Be Complicated Insurance companies often control which laboratories they will reimburse, and many have exclusive agreements with specific “preferred” labs. Even if your doctor orders a test that is medically necessary and has a preferred laboratory they wish to send it to, insurance may refuse to pay if the lab performing it is not on the insurer’s approved list. In addition: Claims can be denied for administrative reasons, not because the test lacks medical necessity. In 2023, studies showed that nearly 1 in 5 claims across commercial plans were denied, with out-of-network labs denied more than one-third of the time. Negotiated rates may not reflect the true cost of testing, leaving smaller or independent labs out-of-network and limiting patient choice. Large insurers sometimes rely on high-volume national labs (like LabCorp or Quest), which must process thousands of samples and often face delays, lost specimens, or reporting outside the necessary timeframe . “Insurance networks and claim rules can make testing feel more like a barrier than a service. That’s why we focus on transparency and patient choice.” Your Options: Affordable, Transparent Self-Pay To make testing accessible and predictable, we offer affordable self-pay pricing. Because all of our testing is performed in-house, locally, we can provide: Lower prices than national lab chains Faster turnaround times Greater accuracy and reliability If you choose to pay out-of-pocket, we will provide a superbill containing everything your insurance company needs to process a claim. This includes: CPT codes for all tests performed Diagnosis codes Our provider identifiers (NPIs) Itemized charges and documentation We are happy to assist you with any additional paperwork or information your insurer may request. Even if the claim is initially denied, we can provide supporting documentation to help you appeal. “We want you to have control over your care — and the ability to submit claims to your insurance if you wish.” Why Our Lab is Different Unlike large national laboratories: Everything is processed locally, in-house, giving us control over quality and timing We avoid unnecessary shipping, which reduces risk of lost or misreported samples Our focus is on patient-centered service, not volume This means you get your results faster, accurately, and at a fraction of the cost. We Are Here to Help We understand this situation is not your fault, and it’s not your choice. Insurance networks, coverage rules, and reimbursement policies are complex — even for providers. Our commitment is simple: Provide high-quality testing you can trust Offer transparent, affordable pricing Support you in navigating insurance reimbursement whenever possible “With self-pay options and superbill support, you can access the testing you need without unnecessary delays or surprises.” Take Action Today We make it simple to access testing services on your terms: If you have questions or need guidance about insurance or billing, please contact our team — we are happy to walk you through every step. With care, The Team at Clinical Diagnostic Laboratories The Team at Clinical Diagnostic Laboratories View Our Self Pay Options >

View a complete list of participating insurances here at Clinical Diagnostic Laboratories. Contact us for more information. PARTICIPATING INSURANCE COMPANIES Clinical Diagnostics Laboratories will file all claims with the below-listed insurance companies. The list below is not a complete list of Health plans with which CDL participates and is subject to change over time. There may be exceptions in certain areas or for certain members or plans. If you have any questions or do not see your insurance company listed here, please contact us. AARP Adventist HealthCare Aetna (PPO) American Postal Workers Union (APWU) AmeriGroup Health AmeriHealth Anthem Assurant Health Beechstreet Benefit Plan Administrators VA Blue Cross Blue Shield of VA PPO, KeyCare, Cova, Medicare Advantage PPO Anthem Blue Cross (PPO, Medicare PPO)Blue Cross Blue Shield of West VA BRMS Capital Blue Cross (PPO Only) Care Improvement Plus-United Health CareFirst BCBS CareLink CareNet Celtic Insurance ChoiceCare Cigna (Multiplan) Cofinity Compass Rose Conifer Health Solution CoreSource Corvel Coventry National PPO Emblem Health (PPO Only) Empire BCBS (PPO Only) Federal and State Benefit Health Plans FEHBP FedMed Inc First Health National PPO Network Fortis Insurance -Assurant Galaxy Health Network GEHA-(First Health) Geisinger Health Great West HealthAmerica HealthPartners Network HealthScope Services HealthSmart Preferred Networks Highmark BCBS (PPO Only) Horizon BCBS (PPO Only) Humana (All Plans) InterPlan Health Group-HealthSmart John Alden Insurance -Assurant Johns Hopkins Healthcare MagnaCare Mail Handlers Benefit Plan Maryland Physicians Care (MPC) MedCost (NovaNet) Medical Mutual Meritain Health Multiplan National Network NALC- Cigna, Multiplan National Capital PPO, Health Link National Care Network NCN National Claims Administrative Services (NCAS) NovaNet PPO OneNet PPO (United Health Care) Optima Health Network-Valley Health Net Paramount Health Care PayerFusion POMCO Prime Health Services Private Healthcare (PMCS) Pyramid Life Insurance Company Riverside Health(Maryland HealthChoice) Ryan White HIV/Aids Program SAMBA FEP StarMark Insurance Stratrose PPO, NPPN SummaCare PPO (Multiplan, PHCS) SuperMed PPO-1st Medical The Health Plan Three Rivers Provider Network Unicare UnitedHealthcare Virginia Health Network-MedCost Ultra, VHN Plus USA MCO Government Health Plans Medicaid VA, MD, and DC Medicare Advantage PPO Medicare Supplement Railroad Medicare Traditional Medicare Tricare Health Net Federal Services Humana Military TriCare for Life TriWest SCHEDULE AN APPOINTMENT Last Name Email Phone Type your message here... Submit Thanks for submitting! A member of our team will respond to your inquiry as soon as possible.