ICD-10-CM 2027
ICD-10 code for toxic gastroenteritis
From the official ICD-10-CM alphabetic index entry “Gastroenteritis (acute) (chronic) (noninfectious) › toxic”. Page updated September 29, 2026.
About coding toxic gastroenteritis
The ICD-10-CM code for toxic gastroenteritis is K52.1 (Toxic gastroenteritis and colitis).
Within K52 (other and unspecified noninfective gastroenteritis and colitis), K52.1 is specifically for toxic gastroenteritis and colitis. Related codes cover gastroenteritis and colitis due to radiation (K52.0), allergic and dietetic gastroenteritis and colitis (K52.2), indeterminate colitis (K52.3), other specified noninfective gastroenteritis and colitis (K52.8) and noninfective gastroenteritis and colitis, unspecified (K52.9).
Code first: (T51-T65) to identify toxic agent.
Use an additional code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5).
Common questions about toxic gastroenteritis ICD-10 codes
What is the ICD-10 code for toxic gastroenteritis?
- K52.1 — Toxic gastroenteritis and colitis.
Is K52.1 billable?
- Yes. K52.1 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can K52.1 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict K52.1 as a principal diagnosis.
Is K52.1 a CC or MCC?
- K52.1 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.