CPT 92020Gonioscopy
Gonioscopy (separate procedure)
CPT 92020 reports gonioscopy, the examination of the anterior chamber angle using a special lens. Used primarily in the evaluation and management of glaucoma.
When to use CPT 92020
Use for patients with suspected or established glaucoma, narrow angles, or anterior segment pathology where angle examination is medically indicated.
Documentation requirements
- Medical indication documented
- Angle findings for all four quadrants
- Grading system used (Shaffer, Spaeth)
- Interpretation and plan
Reimbursement
Use the current payer fee schedule for this code, locality, service setting and date of service.
Rates and patient responsibility depend on the payer and service. No unsourced national average is presented here.
Common modifiers
- -50 bilateral (some payers)
- -25
Common denial reasons for CPT 92020
- Missing medical necessity
- Diagnosis code mismatch
- Already performed within frequency window
Verify CPT 92020 against official sources
Use the code set and payer policy applicable to the date of service. This educational reference is not a coverage decision or a substitute for a qualified coding review.
- CMS Physician Fee Schedule: select the year, locality and service setting before looking up payment information.
- CMS NCCI edits and manuals: check the applicable code-pair edits and modifier instructions.
- Medicare Coverage Database: find relevant coverage and documentation policies.
- AMA CPT resources: consult the current licensed code set.
A practical documentation check
- Match the documented service to the code definition.
- Confirm patient status, laterality, components and any required interpretation.
- Check coverage, edits and payer-specific requirements.
- Have the responsible clinician or billing reviewer resolve discrepancies before submission.
Editorial sources updated September 15, 2026. Published by Jelo.
Jelo’s AI scribe is an upcoming add-on from $70/month. It is being developed to assist with documentation and code suggestions; clinicians and billing staff must verify every code. It is not included in the live platform subscription.
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