ICD-10 Code E13.622 – Other specified diabetes mellitus with other skin ulcer (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E13.622 – Other specified diabetes mellitus with other skin ulcer
What it is
This code identifies a skin ulcer occurring in a patient with other specified diabetes mellitus, when the diabetes type does not fit the main diabetes categories. Use it for a documented ulcer linked to that diabetes diagnosis.
Clinical signs
Typical findings include an open skin lesion or ulcer with breakdown of the skin, often on the lower extremity. Clinical features vary; refer to documentation for the ulcer site, depth, and any stated diabetic association.
When to use this code
Use this code when the record clearly states other specified diabetes mellitus and an associated skin ulcer. You should also confirm that the ulcer is documented as related to the diabetes, not caused by trauma or another skin condition.
If the site is specified, code the ulcer location and severity as directed by the record. Check documentation when the diabetes type or ulcer relationship is unclear.
Do not use for
Do not use this code for ulcers unrelated to diabetes, or when the chart only documents a wound without diabetic linkage. Do not use it if the diabetes type is not “other specified” diabetes mellitus.
Coding tip
Verify both the diabetes type and the ulcer’s documented relationship before assigning E13.622.