MCMedicalCodingSoftware
A51.43

A51.43: Secondary syphilitic oculopathy

Billable / specific codeICD-10-CM

A51.43 is a billable, specific ICD-10-CM code for secondary syphilitic oculopathy. It is valid for submission on a claim.

Check A51.43 with the rest of the claim: free scrubber

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Secondary syphilitic chorioretinitis
  • Secondary syphilitic iridocyclitis, iritis
  • Secondary syphilitic uveitis

Other codes that can never be billed with A51.43

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • H20.0Acute and subacute iridocyclitis

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

A51.43 is named in 1 Medicare coverage policy: 1 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A53060Billing and Coding: Ophthalmology: Extended Ophthalmoscopy and Fundus Photography

Alphabetic index entries that lead here

  • Chorioretinitis›syphilitic(secondary)
  • Iridocyclitis›syphilitic(secondary)
  • Iritis›syphilitic(secondary)
  • Retinitis›syphilitic(early) (secondary)
  • Syphilis, syphilitic›chorioretinitis
  • Syphilis, syphilitic›ciliary body(secondary)
  • Syphilis, syphilitic›iris, iritis(secondary)
  • Syphilis, syphilitic›uveal tract(secondary)
  • Syphilis, syphilitic›uveitis(secondary)
  • Uveitis›syphilitic(secondary)
  • Chorioretinitis›in›syphilis(secondary)
  • Iridocyclitis›in›syphilis

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under A51.4

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.