K52.1 Toxic gastroenteritis and colitis

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

Applicable to

• Drug-induced gastroenteritis and colitis

Code first

• (T51-T65) to identify toxic agent

Use additional code

• code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)

MS-DRG index

Defines the logic of DRG(s) 393-395 in MDC 06.

Approximate ICD-9-CM (GEMs)

• 558.2 Toxic gastroenteritis and colitis

Diagnosis Index entries for K52.1

• Colitis (acute) (catarrhal) (chronic) (noninfective) (hemorrhagic) › drug-induced
• Colitis (acute) (catarrhal) (chronic) (noninfective) (hemorrhagic) › toxic NEC
• Diarrhea, diarrheal (disease) (infantile) (inflammatory) › drug-induced
• Diarrhea, diarrheal (disease) (infantile) (inflammatory) › due to › drugs
• Diarrhea, diarrheal (disease) (infantile) (inflammatory) › toxic
• Enteritis (acute) (diarrheal) (hemorrhagic) (noninfective) › drug-induced
• Enteritis (acute) (diarrheal) (hemorrhagic) (noninfective) › due to › drugs
• Enteritis (acute) (diarrheal) (hemorrhagic) (noninfective) › toxic NEC
• Gastroenteritis (acute) (chronic) (noninfectious) › drug-induced
• Gastroenteritis (acute) (chronic) (noninfectious) › due to › drugs
• Gastroenteritis (acute) (chronic) (noninfectious) › toxic
• Intoxication › alimentary canal
• Intoxication › enteric
• Intoxication › gastrointestinal
• Toxemia › gastrointestinal
• Toxemia › intestinal
• Toxemia › small intestine
• Toxinfection, gastrointestinal

Nearby codes

• K52 Other and unspecified noninfective gastroenteritis and colitis
• K52.0 Gastroenteritis and colitis due to radiation
• K52.1 Toxic gastroenteritis and colitis (this code)
• K52.2 Allergic and dietetic gastroenteritis and colitis
• K52.21 Food protein-induced enterocolitis syndrome
• K52.22 Food protein-induced enteropathy
• K52.29 Other allergic and dietetic gastroenteritis and colitis
• K52.3 Indeterminate colitis