K52.81 is the authoritative medical code for Eosinophilic gastritis or gastroenteritis. This classification is used in medical billing and clinical recording to specify the clinical criteria for eosinophilic gastritis or gastroenteritis (ICD-10-CM K52.81), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Eosinophilic gastritis or gastroenteritis is a billable ICD-10-CM diagnosis code K52.81. Includes: noninfective inflammatory bowel disease. Inclusion terms: Eosinophilic enteritis. Excludes1 (not coded here): irritable bowel syndrome K58.-; megacolon K59.3-. Excludes2 (not included here): eosinophilic esophagitis K20.0.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for K52.81 in the official ICD-10-CM tabular list.
Includes
Conditions the official ICD-10-CM tabular list includes under this code.
- noninfective inflammatory bowel disease
Inclusion Terms
Alternative terms the tabular list files under this code.
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- irritable bowel syndrome K58.-
- megacolon K59.3-
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- eosinophilic esophagitis K20.0
Frequently Asked Questions (FAQ) & Clinical Guidance
What can't be coded together with K52.81?
Per Excludes1 instructions, K52.81 must not be reported with: irritable bowel syndrome (K58.-); megacolon (K59.3-).
Can K52.81 be reported alongside related conditions?
Per Excludes2 instructions, K52.81 and the following may both be reported when both are present: eosinophilic esophagitis (K20.0).
What conditions are included under K52.81?
Eosinophilic gastritis or gastroenteritis includes: Eosinophilic enteritis.
Codes in This Family (17)
Official ICD-10-CM classifications in the same code family as K52.81, with their registry titles.
- K52 — Other and unspecified noninfective gastroenteritis and colitis
- 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
- K52.82 — 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
Indexed Clinical Terms (5)
Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.
- Enteritis (acute) (diarrheal) (hemorrhagic) (noninfective), allergic, with, eosinophilic gastritis or gastroenteritis
- Enteritis (acute) (diarrheal) (hemorrhagic) (noninfective), eosinophilic
- Gastritis (simple), eosinophilic
- Gastroenteritis (acute) (chronic) (noninfectious), allergic, with, eosinophilic gastritis or gastroenteritis
- Gastroenteritis (acute) (chronic) (noninfectious), eosinophilic
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures:
ICD Code K50.81
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ICD Code K57.81
Diverticulitis of intestine, part unspecified, with perforation and abscess with bleeding