Billing code
G811A — Keratometry - Professional Component
Keratometry (central cornea measurement)
Bill G811 for measuring the central 4 mm of the cornea for irregular astigmatism, keratoconus, ectasia or another listed corneal condition.
Watch for: Insured only for the listed indications; keratometry for other reasons is not insured.
| Provider | Specialist | Assistant | Anaesthetist | Non-anaesthetist |
|---|---|---|---|---|
| $4.80 | $0.00 | $0.00 | $0.00 | $0.00 |
- Code
- G811A
- Description
- Keratometry - Professional Component
- FHO+ basket
- Not in the FHO+ base rate basket (Schedule 2 or 2B).
- Effective date
- Apr 1, 2025
- Termination date
- No end date
Explanation
Updated October 26, 2026
Measurement of the central 4 mm of the cornea for irregular astigmatism, keratoconus, ectasia and other listed corneal conditions.
What it covers
Keratometry is measurement of the central 4 mm of the cornea to assess patients with specific corneal conditions (J92).
Indications: irregular astigmatism from scarring due to trauma, herpes simplex keratitis, dystrophies (such as Salzmann's and map-dot-fingerprint) or other inflammatory disorders; keratoconus, pellucid marginal degeneration, keratoglobus, after penetrating keratoplasty or after pterygium excision; or corneal thinning or ectasia where cross-linking is planned or has been done (J92).
Billing rules
- Only insured for the listed indications; keratometry for other reasons is not insured (J92).
- Professional component only is listed (J92).
Often billed with
- E202 corneal cross-linking, when cross-linking is planned or done (J92, Y2).
Related codes: G810, G812, G813, E202
Source: Schedule of Benefits (July 1, 2026), Diagnostic and Therapeutic Procedures, Ophthalmology, page J92.
APEX checks every paid claim against the Schedule of Benefits and flags codes billed below what the visit qualified for. See how APEX works · Pricing