H21.4
Non-billablePupillary membranes
H21.4 is the ICD-10-CM code for Pupillary membranes. It is a non-billable category code — use a more specific child code such as H21.40 for billing.
H00-H59 Diseases of the eye and adnexa
What this means — in plain language
MedlinePlus · NIHWhat diseases can affect the eye? Even if your eyes feel healthy, you could have a problem and not know it. That's why regular eye exams are so important. Refractive errors are the most common type of vision problem that makes it hard to see clearly. But some eye conditions or diseases don't have any symptoms and can lead to a permanent loss of vision . Some common eye diseases and conditions include: Cataracts ,…
Read more about Eye Diseases at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Includes
- •Iris bombé
- •Pupillary occlusion
- •Pupillary seclusion
Excludes1 — not coded here
- •congenital pupillary membranes (Q13.8)
Medications indicated for this condition
FDA labelingDrugs whose FDA labeling lists this condition's category among its indications. Informational only — not a treatment recommendation or medical advice.
Frequently asked questions
- What is ICD-10 code H21.4?
- H21.4 is the ICD-10-CM code for "Pupillary membranes". It falls under H00-H59 Diseases of the eye and adnexa.
- Is H21.4 a billable code?
- No — H21.4 is a non-billable header code. Use a more specific child code (such as H21.40) for billing.
- What are the subcodes of H21.4?
- H21.4 has 4 more specific child codes, including H21.40, H21.41, H21.42.
- What is excluded from H21.4?
- Excludes1 (not coded here): congenital pupillary membranes (Q13.8).
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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