K52.1 Toxic gastroenteritis and colitis

✓ Billable ICD-10-CM 2026
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The ICD-10-CM code for Toxic gastroenteritis and colitis is K52.1 (FY2026). It is a billable, claim-ready diagnosis code.

Classification

Section
K50-K52: Noninfective enteritis and colitis (K50-K52)
Category K52
18 codes (14 billable)
FY2026 Status
Stable since FY2024

Also Known As

ICD-10-CM Alphabetic Index entries that lead to K52.1:

  • Toxinfection, gastrointestinal
  • Colitis (acute) (catarrhal) (chronic) (noninfective) (hemorrhagic) › drug-induced
  • Enteritis (acute) (diarrheal) (hemorrhagic) (noninfective) › drug-induced
  • Diarrhea, diarrheal (disease) (infantile) (inflammatory) › drug-induced
  • Diarrhea, diarrheal (disease) (infantile) (inflammatory) › toxic
  • Enteritis (acute) (diarrheal) (hemorrhagic) (noninfective) › toxic NEC
  • Gastroenteritis (acute) (chronic) (noninfectious) › drug-induced
  • Colitis (acute) (catarrhal) (chronic) (noninfective) (hemorrhagic) › toxic NEC
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)

Inclusion Terms

  • Drug-induced gastroenteritis and colitis

U.S. Hospital Utilization

  • An estimated 75,320 U.S. inpatient stays in 2023 included K52.1 among the documented diagnoses.
  • 14,685 stays listed it as the principal diagnosis.

Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.

Official Coding Guidelines

Chapter 11 reserved for future expansion

11. Chapter 11: Diseases of the Digestive System (K00-K95) Reserved for future guideline expansion

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.11

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

Cite This Page

Reference K52.1 with the canonical source and edition:

K52.1 — Toxic gastroenteritis and colitis. ICD-10 Coding Pro (ICD-10-CM FY2026). https://icd10codingpro.com/codes/K52.1

Canonical URL: https://icd10codingpro.com/codes/K52.1

Related Codes

Parent Code

K52 Other and unspecified noninfective gastroenteritis and colitis

Related Codes in K52

K52 Other and unspecified noninfective gastroenteritis and colitis K52.0 Gastroenteritis and colitis due to radiation 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
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Reviewed by Prajwal Shrestha, CPC, CRC
Certified Professional Coder (CPC) and Certified Risk Adjustment Coder (CRC) · AAPC Member ID 01997614 · About · Editorial policy · Content last reviewed: 2025-10-01

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