K52.2

Allergic and dietetic gastroenteritis and colitis

FY2027Chapter 11: Diseases of the digestive system/K50–K52 Noninfective enteritis and colitis

Non-billable headerNot valid on its own. Use one of the more specific codes under it.

K52.2 is a non-billable ICD-10-CM code header for allergic and dietetic gastroenteritis and colitis. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are K52.21 Food protein-induced enterocolitis syndrome, K52.22 Food protein-induced enteropathy and K52.29 Other allergic and dietetic gastroenteritis and colitis. Its coding notes include a Use additional code instruction, 2 Excludes1 entries and 12 Excludes2 entries.

Use additional code

Add the listed code as a secondary code, if known.

This code

Excludes1

Not coded here. The listed conditions generally should not be reported together.

Also from chapter/block level (2 notes)
Inherited from K50–K52 Noninfective enteritis and colitis

Excludes2

Not included here. Both codes may be reported if the patient has both conditions.

This code
  • allergic eosinophilic colitis (K52.82)
  • allergic eosinophilic esophagitis (K20.0)
  • allergic eosinophilic gastritis (K52.81)
  • allergic eosinophilic gastroenteritis (K52.81)
Also from chapter/block level (8 notes)
Inherited from Chapter 11 Diseases of the digestive system
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Includes

Further defines or gives examples of the content of the category.

Also from chapter/block level (1 note)
Inherited from K50–K52 Noninfective enteritis and colitis
  • noninfective inflammatory bowel disease

Inclusion terms

Conditions classified to this code.

This code
  • Food hypersensitivity gastroenteritis or colitis

More specific codes under K52.2 3