ICD-10 Code E13.638 – Other specified diabetes mellitus with other oral complications (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E13.638 – Other specified diabetes mellitus with other oral complications
What it is
This code identifies diabetes mellitus from another specified type with an oral complication not described by a more specific diabetes code. Use it when the record links the diabetes to a mouth-related problem, but the exact oral condition is not otherwise classified here.
Clinical signs
Clinical features vary; refer to documentation. Oral complications may include mouth symptoms or findings attributed to diabetes, such as periodontal disease, oral infection, or other documented oral pathology.
When to use this code
Use this code when the provider documents other specified diabetes mellitus and an associated oral complication, and no more specific code fits. It is appropriate when the oral issue is clearly linked to the diabetes in the chart. If the oral condition is documented without that linkage, check documentation.
Do not use for
Do not use this code for diabetes without an oral complication, or when a more specific diabetes code describes the condition better. Do not assign it if the oral disorder is unrelated to diabetes.
Coding tip
Confirm both the diabetes type and the documented oral complication before coding, and code the oral condition separately if required by the record.