ICD-10 Code K62.4 – Stenosis of anus and rectum (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K62.4 – Stenosis of anus and rectum
What it is
K62.4 identifies narrowing of the anus or rectum. It is used when the passage is abnormally tight and may interfere with normal stool passage.
Clinical signs
Typical findings include difficult or painful bowel movements, reduced stool caliber, and obstructed rectal examination. Clinical features vary; refer to documentation.
When to use this code
Use K62.4 when the record clearly documents anal or rectal stenosis, stricture, or narrowing. Apply it for congenital or acquired narrowing only if the provider states this diagnosis. If the note describes constipation alone without stenosis, check documentation before coding.
Do not use for
Do not use this code for hemorrhoids, fissures, or nonspecific rectal pain without documented narrowing. Avoid it when the diagnosis is only suspected or not confirmed.
Coding tip
Code the documented site precisely, and query if the record does not clearly distinguish anal from rectal stenosis.