ExchangeDocumentationHigh impact
Ambetter Health Updated Malnutrition Criteria Takes Effect October 1, 2026
Ambetter·FL · Critical Care, General Surgery, Internal Medicine +2 more·Provider Bulletin
Effective date
Oct 1, 2026
We identified it
Aug 26, 2026
Summary
Ambetter Health is updating malnutrition billing criteria effective October 1, 2026. The policy now requires stricter documentation for malnutrition diagnoses in acute care hospitalizations, particularly when billed as a major complication or comorbidity (MCC). Claims lacking appropriate physician documentation will be denied reimbursement, and new ICD-10 codes E44.0 and E44.1 (moderate and severe malnutrition) have been added to the criteria guidelines.
Action Required
By September 30, 2026: Billing team must implement the following changes: (1) Update billing software to enforce enhanced documentation review for all inpatient claims containing malnutrition diagnoses (ICD-10 codes E44.0, E44.1, and related malnutrition codes); (2) Ensure providers and licensed independent practitioners document malnutrition diagnoses with specificity and clinical detail in the medical record, distinguishing between moderate and severe malnutrition; (3) Establish a pre-submission verification process to confirm that malnutrition is billed only when meeting the new criteria guidelines and positioned appropriately in the diagnosis code sequence; (4) Train billing and coding staff on the distinction between moderate (E44.0) and severe (E44.1) malnutrition criteria and documentation requirements. Providers must update inpatient encounter documentation templates to prompt for detailed malnutrition assessment and treatment. Failure to comply will result in claim denials for the cost difference between DRGs billed with malnutrition as MCC versus those without.