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G032
G032 – Anti-DNA
OHIP Diagnostic & Therapeutic Procedures Code — DIAGNOSTIC AND THERAPEUTIC PROCEDURES · Schedule of Benefits
A laboratory medicine test to measure anti-DNA antibodies, typically used in the investigation of autoimmune disorders like systemic lupus erythematosus (SLE).
When to Use
- Use G032 when investigating systemic lupus erythematosus (SLE) in patients presenting with clinical markers such as malar rash, photosensitivity, or unexplained serositis.
- Use G032 to monitor disease activity or treatment response in patients with a confirmed diagnosis of SLE where anti-dsDNA titers correlate with clinical flares.
Common Pitfalls
- Avoid billing G032 as a routine screening test for non-specific arthralgia without clinical suspicion of systemic autoimmune disease, as this is a common reason for audit recovery.
- Do not bill G032 in conjunction with G031 (ANA) if the laboratory protocol automatically reflex-tests the anti-DNA based on a positive ANA result, as this may be flagged as duplicate billing.
Billing Tips
- Ensure the clinical indication for the test is clearly linked to the patient's diagnosis code on the requisition to support medical necessity during post-payment review.
Provider Fee$23.25
Effective: April 1, 2026
Category
J. Diagnostic and Therapeutic Procedures
Subcategory
DIAGNOSTIC AND THERAPEUTIC PROCEDURES
Service Type
Laboratory
Code Classes
Diagnostic and Therapeutic Procedures
Referral RequiredFrom: Physician, NursePractitioner, OralMaxillofacialSurgeon
The Act requires that the record establish that: an insured service was provided; the service for which the account is submitted is the service that was rendered; and the service was medically necessary.
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