The icd-10-cm codes that should be reported are 707.13 and 250.00.
To add, in the ICD-9-CM Index to Diseases, look for Ulcer/lower extremity/ankle which refers you to code 707.13. Under subcategory code 707.1, there is a note: Code, if applicable, any casual condition first. The scenario does not have a causal relationship between the ulcer and diabetes (example, ulcer due to the diabetes). The two codes will be coded separately. The code for a diabetic manifestation is not reported because there is no causal relationship. Look in the Index to Diseases for Diabetes, diabetic 250.0x. In the Tabular List, a fifth digit of 0 is selected for diabetes with no mention of complication.