K90.49
Billable codeMalabsorption due to intolerance, not elsewhere classified
The ICD-10 code for malabsorption due to intolerance, not elsewhere classified is K90.49.
Clinical notes
Also known as
Alternate wording, synonyms, or specific conditions that fall under this code, listed to help confirm you've picked the right one.
- Malabsorption due to intolerance to carbohydrate
- Malabsorption due to intolerance to fat
- Malabsorption due to intolerance to protein
- Malabsorption due to intolerance to starch
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- K90.41Non-celiac gluten sensitivity
- K90.49Malabsorption due to intolerance, not elsewhere classified
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- 5798Approximate match
Associated MS-DRGs
K90.49 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.
- DRG 314Other Circulatory System Diagnoses with MCC
- DRG 315Other Circulatory System Diagnoses with CC
- DRG 316Other Circulatory System Diagnoses without CC/MCC
- DRG 391Esophagitis, Gastroenteritis and Miscellaneous Digestive Disorders with MCC
- DRG 392Esophagitis, Gastroenteritis and Miscellaneous Digestive Disorders without MCC