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H10.509

H10.509: Unspecified blepharoconjunctivitis, unspecified eye

Billable / specific codeICD-10-CMunspecified

H10.509 is a billable, specific ICD-10-CM code for unspecified blepharoconjunctivitis, unspecified eye. It is valid for submission on a claim.

Check H10.509 with the rest of the claim: free scrubber

Excludes1 inherited from the categories above H10.509

A category’s note binds every code beneath it.

Written on H10: Conjunctivitis

  • keratoconjunctivitis (H16.2-)

Risk adjustment

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

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under H10.50

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.