E09.43 vs K31
E09.43 (Drug or chemical induced diabetes mellitus with neurological complications with diabetic autonomic (poly)neuropathy) compared with K31 (Other diseases of stomach and duodenum), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).
Can these codes be reported together?
Yes, when both are documented. K31 carries an Excludes2 note covering E09.43: “diabetic gastroparesis (E08.43, E09.43, E10.43, E11.43, E13.43)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| E09.43Drug or chemical induced diabetes mellitus with neurological complications with diabetic autonomic (poly)neuropathy | K31Other diseases of stomach and duodenum | |
|---|---|---|
| Billing status | Billable | Non-billable header |
| Classification | E00-E89 — Endocrine, Nutritional and Metabolic Diseases (E00-E89) | K00-K95 — Diseases of the Digestive System (K00-K95) |
| Definition | Drug or chemical induced diabetes mellitus with neurological complications with diabetic autonomic (poly)neuropathy is a billable ICD-10-CM diagnosis code (E09.43). | Other diseases of stomach and duodenum is a non-billable ICD-10-CM category code (K31). |
| Includes | Drug or chemical induced diabetes mellitus with diabetic gastroparesis | functional disorders of stomach |
| Use additional code | code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5) code to identify control using: injectable non-insulin antidiabetic drugs (Z79.85) | — |
| Code first | poisoning due to drug or toxin, if applicable (T36-T65 with fifth or sixth character 1-4) | — |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources