K90.0

Celiac disease

FY2027Chapter 11: Diseases of the digestive system/K90–K95 Other diseases of the digestive system

BillableComplete code, valid to report

K90.0 (also written K900) is a billable ICD-10-CM diagnosis code for celiac disease. It is part of the FY2027 code set, effective October 1, 2026. It is one of the 13 codes in category K90 (Intestinal malabsorption). The Alphabetic Index lists it under 28 entries. Its coding notes include a Use additional code instruction, a Code also instruction, 1 Excludes1 entry and 8 Excludes2 entries.

Use additional code

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

This code
  • code for associated disorders including:

Code also

Two codes may be needed to describe the condition. This note gives no sequencing order.

This code
  • exocrine pancreatic insufficiency (K86.81)

Excludes1

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

Inherited from K90 Intestinal malabsorption
  • intestinal malabsorption following gastrointestinal surgery (K91.2)

Excludes2

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

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 - Gastrointestinal tract and Genitourinary system clinical group.

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

Inclusion terms

Conditions classified to this code.

This code
  • Celiac disease with steatorrhea
  • Celiac gluten-sensitive enteropathy
  • Nontropical sprue

Alphabetic Index terms

Terms the official Alphabetic Index lists for this code. 28 entries

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