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ICD-10-CM 2027

ICD-10 code for conjunctiva hyperemia

H11.43

Conjunctival hyperemia

Header — needs a more specific code

From the official ICD-10-CM alphabetic index entry “Hyperemia (acute) (passive) › conjunctiva”. Page updated September 29, 2026.

About coding conjunctiva hyperemia

The ICD-10-CM code for conjunctiva hyperemia is H11.43 (Conjunctival hyperemia).

Within H11.4 (other conjunctival vascular disorders and cysts), H11.43 is specifically for conjunctival hyperemia. Related codes cover vascular abnormalities of conjunctiva (H11.41), conjunctival edema (H11.42) and conjunctival cysts (H11.44).

To report this condition, pick the subcode that matches the documentation: H11.431 (right eye), H11.432 (left eye), H11.433 (bilateral) and H11.439 (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 conjunctiva hyperemia ICD-10 codes

What is the ICD-10 code for conjunctiva hyperemia?

H11.43 — Conjunctival hyperemia (a header code; report a more specific subcode).

Is H11.43 billable?

No. H11.43 is a header code. Report one of its more specific subcodes instead.