ICD-10-CM 2027
ICD-10 code for pupillary membrane
From the official ICD-10-CM alphabetic index entry “Membrane (s), membranous › pupillary”. Page updated September 29, 2026.
About coding pupillary membrane
The ICD-10-CM code for pupillary membrane is H21.4 (Pupillary membranes). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on H21.4.
Within H21 (other disorders of iris and ciliary body), H21.4 is specifically for pupillary membranes. Related codes cover Hyphema (H21.0), other vascular disorders of iris and ciliary body (H21.1), degeneration of iris and ciliary body (H21.2), cyst of iris, ciliary body and anterior chamber (H21.3), other and unspecified adhesions and disruptions of iris and ciliary body (H21.5), other specified disorders of iris and ciliary body (H21.8) and unspecified disorder of iris and ciliary body (H21.9).
To report this condition, pick the subcode that matches the documentation: H21.40 (unspecified eye), H21.41 (right eye), H21.42 (left eye) and H21.43 (bilateral).
Don't report H21.4 together with the conditions in its Excludes1 note: congenital pupillary membranes (Q13.8).
More specific pupillary membrane codes (official index)
- persistent Q13.89 — Other congenital malformations of anterior segment of eye
Don't confuse with (Excludes1 for H21.4)
- congenital pupillary membranes (Q13.8)
Common questions about pupillary membrane ICD-10 codes
What is the ICD-10 code for pupillary membrane?
- H21.4 — Pupillary membranes (a header code; report a more specific subcode). More specific codes apply when the documentation supports them: Q13.89.
What is the ICD-10 code for persistent pupillary membrane?
- Q13.89 — Other congenital malformations of anterior segment of eye.
Is H21.4 billable?
- No. H21.4 is a header code. Report one of its more specific subcodes instead.