Z68.51

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

Billable / specificPOA exempt

Z68.51 is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.

Inclusion terms

Includes (from Z68)

  • Note: Z codes represent reasons for encounters. A corresponding procedure code must accompany a Z code if a procedure is performed. Categories Z00-Z99 are provided for occasions when circumstances other than a disease, injury or external cause classifiable to categories A00-Y89 are recorded as 'diagnoses' or 'problems'. This can arise in two main ways:
  • Note: (a) When a person who may or may not be sick encounters the health services for some specific purpose, such as to receive limited care or service for a current condition, to donate an organ or tissue, to receive prophylactic vaccination (immunization), or to discuss a problem which is in itself not a disease or injury.
  • Note: (b) When some circumstance or problem is present which influences the person's health status but is not in itself a current illness or injury.
  • Note: BMI adult codes are for use for persons 20 years of age or older
  • Note: BMI pediatric codes are for use for persons 2-19 years of age.
  • Note: These percentiles are based on the growth charts published by the Centers for Disease Control and Prevention (CDC)

Also known as

  • Body, bodies, mass index, pediatric, less than fifth percentile for age

Parent code

  • Z68.5Body mass index [BMI] pediatricHeader

Related codes

  • Z68.52Body mass index [BMI] pediatric, 5th percentile to less than 85th percentile for ageBillable
  • Z68.53Body mass index [BMI] pediatric, 85th percentile to less than 95th percentile for ageBillable
  • Z68.54Body mass index [BMI] pediatric, 95th percentile for age to less than 120% of the 95th percentile for ageBillable
  • Z68.55Body mass index [BMI] pediatric, 120% of the 95th percentile for age to less than 140% of the 95th percentile for ageBillable
  • Z68.56Body mass index [BMI] pediatric, greater than or equal to 140% of the 95th percentile for ageBillable

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