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ICD-10-CM 2027

ICD-10 code for Nummular keratitis

H16.11

Macular keratitis

Header — needs a more specific code

From the official ICD-10-CM alphabetic index entry “Keratitis (nodular) (nonulcerative) (simple) (zonular) › nummular”. Page updated September 29, 2026.

About coding Nummular keratitis

The ICD-10-CM code for Nummular keratitis is H16.11 (Macular keratitis).

Within H16.1 (other and unspecified superficial keratitis without conjunctivitis), H16.11 is specifically for macular keratitis. Related codes cover unspecified superficial keratitis (H16.10), Filamentary keratitis (H16.12), Photokeratitis (H16.13) and Punctate keratitis (H16.14).

To report this condition, pick the subcode that matches the documentation: H16.111 (right eye), H16.112 (left eye), H16.113 (bilateral) and H16.119 (unspecified eye).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Common questions about Nummular keratitis ICD-10 codes

What is the ICD-10 code for Nummular keratitis?

H16.11 — Macular keratitis (a header code; report a more specific subcode).

Is H16.11 billable?

No. H16.11 is a header code. Report one of its more specific subcodes instead.