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ICD-10 Code K52.2: Allergic and dietetic gastroenteritis and colitis

K52.2 is an ICD-10 diagnosis entry used to group records related to Allergic and dietetic gastroenteritis and colitis. You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen. ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Diseases of the digestive system (K00-K95).

What is this code?

ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Diseases of the digestive system (K00-K95).

When is it used?

  • May be used when a clinician documents allergic and dietetic gastroenteritis and colitis in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code may act more like a grouping or parent code, so a more specific child code may be used in final documentation when available.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
  • This entry may represent a broader category rather than the most specific billable code.

Code hierarchy

chapter
11Diseases of the digestive system (K00-K95)
block
K50-K52Noninfective enteritis and colitis
category
K52Other and unspecified noninfective gastroenteritis and colitis
currentK52

Official coding notes

Inclusion terms
  • Food hypersensitivity gastroenteritis or colitis
Applicable to
  • code to identify type of food allergy (Z91.01-, Z91.02-)
Excludes2 (may code together if documented)
  • allergic eosinophilic colitis (K52.82)
  • allergic eosinophilic esophagitis (K20.0)
  • allergic eosinophilic gastritis (K52.81)
  • allergic eosinophilic gastroenteritis (K52.81)
Use additional code
  • code to identify type of food allergy (Z91.01-, Z91.02-)

Where you may see this code

You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen.

Related specialists

GastroenterologistGeneral Physician

Coding guidelines

Compatibility

Legacy code aligns to an official FY 2026 category. Frontend should resolve to the official category page and surface the billable child codes.
Legacy codes
K52.2
Replacement codes
K52.21 — Food protein-induced enterocolitis syndromeK52.22 — Food protein-induced enteropathyK52.29 — Other allergic and dietetic gastroenteritis and colitis

Common synonyms

Allergic and dietetic gastroenteritis and colitis

Frequently asked questions

Code details

CodeK52.2
SystemICD10
Display nameAllergic and dietetic gastroenteritis and colitis
ChapterDiseases of the digestive system (K00-K95)
BlockNoninfective enteritis and colitis

Flags

BillableNo
Valid clinical useNo

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.