Diagnostic code
250 — Diabetes : Diabetes mellitus, including complications
250 is an OHIP diagnostic code used on Ontario Health Insurance Plan claims. Diabetes : Diabetes mellitus, including complications.
- Code
- 250
- Description
- Diabetes : Diabetes mellitus, including complications
Updated October 26, 2026
250 is the OHIP diagnostic code for diabetes mellitus, type 1 or type 2, including its complications.
Conditions billed under this code
- Diabetes
What it covers
The Ministry lists 250 as 'Diabetes mellitus, including complications' under the Diabetes heading of the Endocrine, Nutritional and Metabolic Diseases chapter.
Use it for type 1 and type 2 diabetes. Because the code includes complications, it also covers diabetes complications such as neuropathy or kidney disease.
Close neighbours: 249 pre-diabetes; 248 diabetes with eye complications, such as diabetic retinopathy; 251 other pancreatic hormone disorders, such as hypoglycemia in a patient without diabetes.
Billing notes
- 250 is on the GP26 list for E078, the chronic disease assessment premium (+50%) that specialists in the listed specialties add to an office or out-patient clinic assessment (GP25–GP26).
- Family practice diabetes services: K030 diabetic management assessment, up to 4 per patient per 12 months, with a diabetic flow sheet (A53); Q040 diabetes management incentive, once per 12 months after at least three K030s (A53); K029 insulin therapy support for patients on 3 or more injections a day or a pump, up to 6 units per year (A52). The Schedule describes these by condition and doesn't print a diagnostic code for them.
- Diabetes is one of six diseases eligible for chronic disease shared appointments, K140 to K144 (A22).
Related codes: 249, 248, 251, 272, 278
Sources
- OHIP Diagnostic Codes (Ministry of Health, February 2026)
- Schedule of Benefits: Physician Services (effective July 1, 2026)
APEX flags claims whose diagnostic code does not fit the service billed before they come back rejected. See how APEX works · Pricing