ICD-10-CM 2027
ICD-10 code for pterygium
From the official ICD-10-CM alphabetic index entry “Pterygium (eye)”. Page updated September 29, 2026.
About coding pterygium
The ICD-10-CM code for pterygium is H11.00 (Unspecified pterygium of eye). The official index lists 7 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on H11.00.
Within H11.0, choose H11.00 (Unspecified pterygium of eye) only when documentation doesn't support a more specific option: amyloid pterygium (H11.01), central pterygium of eye (H11.02), Double pterygium of eye (H11.03), peripheral pterygium of eye, stationary (H11.04), peripheral pterygium of eye, progressive (H11.05) and recurrent pterygium of eye (H11.06).
To report this condition, pick the subcode that matches the documentation: H11.001 (eye), H11.002 (eye), H11.003 (bilateral) and H11.009 (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 pterygium codes (official index)
- amyloid H11.01 — Amyloid pterygium
- central H11.02 — Central pterygium of eye
- colli Q18.3 — Webbing of neck
- double H11.03 — Double pterygium of eye
- peripheral
- progressive H11.05 — Peripheral pterygium of eye, progressive
- stationary H11.04 — Peripheral pterygium of eye, stationary
- recurrent H11.06 — Recurrent pterygium of eye
Common questions about pterygium ICD-10 codes
What is the ICD-10 code for pterygium?
- H11.00 — Unspecified pterygium of eye (a header code; report a more specific subcode). More specific codes apply when the documentation supports them: H11.01, H11.02, Q18.3, H11.03 and others below.
What is the ICD-10 code for amyloid pterygium?
- H11.01 — Amyloid pterygium (header code; choose a more specific subcode).
What is the ICD-10 code for central pterygium?
- H11.02 — Central pterygium of eye (header code; choose a more specific subcode).
What is the ICD-10 code for colli pterygium?
- Q18.3 — Webbing of neck.
What is the ICD-10 code for double pterygium?
- H11.03 — Double pterygium of eye (header code; choose a more specific subcode).
What is the ICD-10 code for recurrent pterygium?
- H11.06 — Recurrent pterygium of eye (header code; choose a more specific subcode).
Is H11.00 billable?
- No. H11.00 is a header code. Report one of its more specific subcodes instead.