R63.6
BillableUnderweight
This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
A condition where a person weighs less than the normal healthy weight range for their height and age.
Coding Tips
- •Document the patient's BMI or specific weight measurements to support the underweight diagnosis
- •Investigate and code the underlying cause if documented (malnutrition, eating disorder, chronic illness)
Excludes 1 — Do NOT code together
Use Additional Code
- code to identify body mass index (BMI), if known (Z68.-)