The diabetes mellitus codes are combination codes that include the type of diabetes mellitus, the body system affected, and the complications affecting that body system.
When documenting diabetes, include the following:
1. Type e.g. Type 1 or Type 2 disease, drug or chemical induced, due to underlying condition, gestational
2. Complications What (if any) other body systems are affected by the diabetes condition? e.g. Foot ulcer related to diabetes mellitus
3. Treatment Is the patient on insulin?