ICD-10-CM K52: Other and unspecified noninfective gastroenteritis and colitis

ICD-10-CM Diagnosis Code (2025)

Official Description for K52

Other and unspecified noninfective gastroenteritis and colitis

Coding Notes & Guidelines for K52

Excludes1: Not Coded Here

unspecified colitis (K52.9)

Excludes1: Not Coded Here
  • diarrhea NOS (R19.7)
  • functional diarrhea (K59.1)
  • infectious gastroenteritis and colitis NOS (A09)
  • neonatal diarrhea (noninfective) (P78.3)
  • psychogenic diarrhea (F45.8)
Excludes2: Not Included Here
  • allergic eosinophilic colitis (K52.82)
  • allergic eosinophilic esophagitis (K20.0)
  • allergic eosinophilic gastritis (K52.81)
  • allergic eosinophilic gastroenteritis (K52.81)
Excludes2: Not Included Here

eosinophilic esophagitis (K20.0)

Excludes2: Not Included Here
  • allergic proctocolitis (K52.29)
  • food-induced eosinophilic proctocolitis (K52.29)
  • food protein-induced enterocolitis syndrome (FPIES) (K52.21)
  • food protein-induced proctocolitis (K52.29)
  • milk protein-induced proctocolitis (K52.29)
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)

Use Additional Code

code to identify type of food allergy (Z91.01-, Z91.02-)

Use Additional Code

code for hypovolemic shock, if present (R57.1)

Inclusion Terms

Drug-induced gastroenteritis and colitis

Inclusion Terms

Food hypersensitivity gastroenteritis or colitis

Inclusion Terms

FPIES

Inclusion Terms
  • Allergic proctocolitis
  • Food hypersensitivity gastroenteritis or colitis
  • Food-induced eosinophilic proctocolitis
  • Food protein-induced proctocolitis
  • Immediate gastrointestinal hypersensitivity
  • Milk protein-induced proctocolitis
Inclusion Terms

Colonic inflammatory bowel disease unclassified (IBDU)

Inclusion Terms

Eosinophilic enteritis

Inclusion Terms
  • Colitis NOS
  • Enteritis NOS
  • Gastroenteritis NOS
  • Ileitis NOS
  • Jejunitis NOS
  • Sigmoiditis NOS

Child Codes (More Specific Codes for K52):

K52.0 - Gastroenteritis and colitis due to radiation K52.1 - Toxic gastroenteritis and colitis 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 K52.8 - Other specified noninfective gastroenteritis and colitis K52.81 - Eosinophilic gastritis or gastroenteritis K52.82 - Eosinophilic colitis K52.83 - Microscopic colitis K52.831 - Collagenous colitis K52.832 - Lymphocytic colitis K52.838 - Other microscopic colitis K52.839 - Microscopic colitis, unspecified K52.89 - Other specified noninfective gastroenteritis and colitis K52.9 - Noninfective gastroenteritis and colitis, unspecified

About ICD-10-CM Code K52 (Other and unspecified noninfective gastroenteritis and colitis)

ICD-10-CM code K52 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM K52 became effective on October 1, 2024.

This page provides detailed information about K52 - Other and unspecified noninfective gastroenteritis and colitis. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Other and unspecified noninfective gastroenteritis and colitis.