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Billing code

G810A — Corneal Topography - Professional Component

Corneal topography

Bill G810 for topographic mapping of the cornea for irregular astigmatism, keratoconus, ectasia or another listed corneal condition.

Watch for: Insured only for the listed indications; corneal topography for other reasons is not insured.

ProviderSpecialistAssistantAnaesthetistNon-anaesthetist
$4.80$0.00$0.00$0.00$0.00
Code
G810A
Description
Corneal Topography - 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

Topographic mapping of the cornea for irregular astigmatism, keratoconus, ectasia and other listed corneal conditions.

What it covers

Corneal topography is topographical mapping of the cornea, for patients with the same indications as keratometry (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; topography for other reasons is not insured (J92).
  • Professional component only is listed (J92).

Often billed with

  • E202 corneal cross-linking assessment and follow-up (J92, Y2).

Related codes: G811, G812, G813, E202, E121

Source: Schedule of Benefits (July 1, 2026), Diagnostic and Therapeutic Procedures, Ophthalmology, page J92.

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