Summary & Overview
CPT 86038: Antinuclear Antibody Test, Serum Technical Component
CPT code 86038 identifies the technical laboratory procedure to analyze serum for antinuclear antibodies (ANA), a key diagnostic test in the evaluation of autoimmune and rheumatologic disease. Nationally, ANA testing is a common laboratory service with implications for diagnostic pathways, specialty referrals, and downstream care utilization. Accurate coding of the technical component supports appropriate billing, laboratory workflow, and data capture for epidemiology and quality measurement.
This analysis covers major national payers: Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of how CPT code 86038 is defined, the clinical context for ordering the test, typical sites of service where the technical component is performed, and common billing considerations. Where available, benchmark summaries and payer policy highlights are presented to clarify coverage and claim adjudication patterns.
The publication supplies practical reference material for billing and coding staff, laboratory managers, and policy analysts seeking clarity on procedure definition, payer scope, and the clinical role of ANA testing. Data not available in the input is noted explicitly when relevant.
Billing Code Overview
CPT code 86038 describes a laboratory technical procedure in which a lab analyst performs testing to detect antinuclear antibodies (ANA) in a patient's serum. These antibodies target the nucleus of human cells and are commonly evaluated when autoimmune disorders such as systemic lupus erythematosus or other connective tissue diseases are suspected.
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Service type: Clinical laboratory test, technical component
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Typical site of service: Clinical laboratory or hospital laboratory setting, including reference or specialty labs
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Clinical & Coding Specifications
Clinical Context
A 37-year-old woman presents to the outpatient rheumatology clinic with a 6-month history of persistent arthralgias, fatigue, and photosensitive rash. The ordering rheumatologist documents concern for systemic autoimmune disease and requests laboratory testing for antinuclear antibodies. A phlebotomy technician collects a serum specimen, labels it per laboratory policy, and sends it to the clinical immunology laboratory. In the laboratory, a medical technologist or lab analyst performs an antinuclear antibody assay using indirect immunofluorescence or an automated immunoassay platform. The technical procedure includes specimen processing, assay setup, incubation, washing, reading of fluorescence or instrument output, and quality control. Results are reported to the ordering provider and entered into the electronic medical record. Typical sites of service include hospital-based laboratories, freestanding clinical laboratories, and outpatient clinic laboratory draw stations. Common clinical indications include evaluation for systemic lupus erythematosus, systemic sclerosis, mixed connective tissue disease, and other autoimmune connective tissue disorders; the test is often ordered when patients have multisystem symptoms such as unexplained rash, arthralgia, cytopenias, or renal involvement.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
26 | Professional component | When billing only for the professional interpretation component if applicable and reported separately |
59 | Distinct procedural service | When a separate, distinct lab procedure is performed on the same day that is not usually bundled with the ANA technical test |
90 | Reference lab | When the specimen is sent to an outside reference laboratory for performance |
91 | Repeat clinical diagnostic laboratory test | When a repeat test is performed on the same day to obtain subsequent results |
52 | Reduced services | When the laboratory performs a reduced service compared with the full procedure |
53 | Discontinued procedure | When testing is started but discontinued due to specimen issues or patient factors |
QW | CLIA-waived test | If a waived point-of-care ANA test is performed (rare) and meets CLIA-waived criteria |
TC | Technical component | When billing only for the technical component if the professional interpretation is billed separately |
90 | Reference lab | When the specimen is sent to an outside reference laboratory for performance |
XE | Separate encounter | When the technical service was performed during a separate encounter from other services |
| Taxonomy Code | Specialty | Notes |
|---|---|---|
| 207RH0000X | Rheumatology | Ordering and interpreting providers who commonly request ANA testing |
| 2085P0207X | Clinical Pathology | Laboratory directors and pathologists overseeing immunology testing |
| 364S00000X | Laboratory Director | Clinical laboratory professionals responsible for test validity and reporting |
| 208000000X | Internal Medicine | Primary care and internal medicine physicians who frequently order ANA as part of diagnostic workup |
Related Diagnoses
| ICD-10 Code | Description | Clinical Relevance |
|---|---|---|
M32.9 | Systemic lupus erythematosus, unspecified | ANA testing is a primary screening test when SLE is suspected |
M34.9 | Systemic sclerosis, unspecified | ANA frequently positive in systemic sclerosis; used in diagnostic evaluation |
M35.9 | Systemic involvement of connective tissue, unspecified | Broad connective tissue disease workup includes ANA |
M35.3 | Polymyalgia rheumatica | Occasionally evaluated with autoimmune serologies when clinical overlap exists |
R21 | Rash and other nonspecific skin eruption | Dermatologic presentations often prompt ANA testing to evaluate autoimmune causes |
Related CPT Codes
| CPT Code | Description | Relationship to This Procedure |
|---|---|---|
36415 | Collection of venous blood by venipuncture | Specimen collection step prior to performing the ANA assay |
86038 | Antinuclear antibody; laboratory analysis for ANA in serum (technical component described) | The primary technical procedure that analyzes serum for antinuclear antibodies |
86255 | Complement fixation test for antibody (e.g., C1q) or complement components (qualitative or quantitative) | Ancillary immunology testing sometimes ordered alongside ANA for autoimmune evaluation |
86359 | Immunoassay for infectious or non-infectious agents (e.g., ANA profile components) | Used when automated immunoassays or multiplex panels are performed for related autoantibodies |
99213 | Office or other outpatient visit for established patient, moderate complexity | Typical evaluation visit during which ANA testing is ordered |