Alphabetic Index FY2027

K52.22

Food protein-induced enteropathy

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

BillableComplete code, valid to report
Care settingsHome Health Primary · MMTA - Other

K52.22 (also written K5222) is a billable ICD-10-CM diagnosis code for food protein-induced enteropathy. It is part of the FY2027 code set, effective October 1, 2026. It is one of the 14 codes in category K52 (Other and unspecified noninfective gastroenteritis and colitis). The Alphabetic Index lists it under 4 entries. 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.

Inherited from K52.2 Allergic and dietetic gastroenteritis and colitis

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.

Inherited from K52.2 Allergic and dietetic gastroenteritis and colitis
  • 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)

Care settings

How CMS programs treat this code. These are CMS claim edits and list entries, not coverage or eligibility rules.

Home Health Primary

Accepted as the primary (principal) diagnosis on a home health claim. The Home Health Grouper assigns it to the MMTA - Other clinical group.

Source: CMS Home Health Grouper Software v07.2.26, effective October 1, 2026

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

Alphabetic Index terms

Terms the official Alphabetic Index lists for this code. 4 entries