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Z68.51

Billable

Body mass index [BMI] pediatric, less than 5th percentile for age

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

A child's weight is significantly below the healthy range for their age, indicating underweight status based on BMI percentile measurements.

Coding Tips

  • Use this code when a pediatric patient's BMI falls below the 5th percentile for their age and sex
  • This is a status code used for documentation; pair with clinical assessment codes if malnutrition or other conditions are present

Code Hierarchy

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