Skip to content
Dx

ICD-10-CM 2027

ICD-10 code for narrow

Choose a code from the options below based on the documentation.

From the official ICD-10-CM alphabetic index entry “Narrow”. Page updated September 29, 2026.

About coding narrow

The official ICD-10-CM index doesn't give a single default code for narrow; the code depends on the details below.

More specific narrow codes (official index)

  • anterior chamber angle H40.03 — Anatomical narrow angle
  • gingival width (of periodontal soft tissue) K05.5 — Other periodontal diseases
  • pelvis

Common questions about narrow ICD-10 codes

What is the ICD-10 code for anterior chamber angle narrow?

H40.03 — Anatomical narrow angle (header code; choose a more specific subcode).

What is the ICD-10 code for gingival width narrow?

K05.5 — Other periodontal diseases.