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ICD-10-CM 2027

ICD-10 code for superficial keratitis

H16.10

Unspecified superficial keratitis

Header — needs a more specific code

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

About coding superficial keratitis

The ICD-10-CM code for superficial keratitis is H16.10 (Unspecified superficial keratitis).

Within H16.1, choose H16.10 (Unspecified superficial keratitis) only when documentation doesn't support a more specific option: macular keratitis (H16.11), Filamentary keratitis (H16.12), Photokeratitis (H16.13) and Punctate keratitis (H16.14).

To report this condition, pick the subcode that matches the documentation: H16.101 (right eye), H16.102 (left eye), H16.103 (bilateral) and H16.109 (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.

More specific superficial keratitis codes (official index)

  • with conjunctivitis
  • due to light

Common questions about superficial keratitis ICD-10 codes

What is the ICD-10 code for superficial keratitis?

H16.10 — Unspecified superficial keratitis (a header code; report a more specific subcode).

Is H16.10 billable?

No. H16.10 is a header code. Report one of its more specific subcodes instead.