K90.49 — Malabsorption due to intolerance, not elsewhere classified
K90.49 is a billable, specific ICD-10-CM code for malabsorption due to intolerance, not elsewhere classified. It is valid for submission on a claim.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Malabsorption due to intolerance to carbohydrate
- Malabsorption due to intolerance to fat
- Malabsorption due to intolerance to protein
- Malabsorption due to intolerance to starch
Risk adjustment
K90.49 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
K90.49 is named in 16 Medicare coverage policies — 16 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A56389Billing and Coding: Upper Gastrointestinal Endoscopy and Visualization
- A56416Billing and Coding: Assays for Vitamins and Metabolic Function
- A56416Billing and Coding: Assays for Vitamins and Metabolic Function
- A56421Billing and Coding: CT of the Abdomen and Pelvis
How K90.49 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to K90.49.
- Absorption›carbohydrate, disturbance
- Absorption›fat, disturbance
- Absorption›protein, disturbance
- Absorption›starch, disturbance
- Enteropathy›protein-losing
- Intolerance›carbohydrate
- Intolerance›fat NEC
- Intolerance›food
- Intolerance›milk NEC
- Intolerance›protein
- Intolerance›starch NEC
- Malabsorption›carbohydrate
Related codes at this level
Codes that share K90.4. If K90.49 is not quite right, the correct code is usually one of these.
Questions about K90.49
- Is K90.49 a billable ICD-10-CM code?
- Yes. K90.49 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does K90.49 sit in the tabular list?
- Diseases of the digestive system (K00-K95), in the block Other diseases of the digestive system (K90-K95).