K90 – Intestinal malabsorption
ICD-10-CM 2027 diagnosis code · Other diseases of the digestive system
ICD-10-CM code
K90
- Code
K90(claims format:K90)- Description
- Intestinal malabsorption
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 11. Diseases of the digestive system (K00-K95)
- Block
- K90-K95 Other diseases of the digestive system
Billable codes under K90
K90 is a header code and cannot be used on claims. Choose the most specific code:
- K90.0 – Celiac diseaseBillable
- K90.1 – Tropical sprueBillable
- K90.2 – Blind loop syndrome, not elsewhere classifiedBillable
- K90.3 – Pancreatic steatorrheaBillable
- K90.4 – Other malabsorption due to intoleranceHeader (more codes below)
- K90.8 – Other intestinal malabsorptionHeader (more codes below)
- K90.9 – Intestinal malabsorption, unspecifiedBillable
Notes for K90
Excludes1 (not coded here):
- intestinal malabsorption following gastrointestinal surgery (K91.2)
Frequently asked questions
What is ICD-10 code K90?
K90 is the ICD-10-CM code for intestinal malabsorption, in the block K90-K95 (Other diseases of the digestive system).
Is K90 a billable code?
No. K90 is a header code with more specific child codes; report one of the billable codes listed above.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.