ICD-10 Diagnosis Code Z68.1

Body mass index (BMI) 19 or less, adult

Diagnosis Code Z68.1

ICD-10: Z68.1
Short Description: Body mass index (BMI) 19 or less, adult
Long Description: Body mass index (BMI) 19 or less, adult
This is the 2017 version of the ICD-10-CM diagnosis code Z68.1

Code Classification
  • Factors influencing health status and contact with health services
    • Body mass index (BMI) (Z68)
      • Body mass index [BMI] (Z68)

Information for Medical Professionals

Code Edits
The following edits are applicable to this code:
Adult diagnoses Additional informationCallout TooltipAdult diagnoses
Adult. Age range is 15–124 years inclusive (e.g., senile delirium, mature cataract).

Unacceptable principal diagnosis Additional informationCallout TooltipUnacceptable principal diagnosis
There are selected codes that describe a circumstance which influences an individual’s health status but not a current illness or injury, or codes that are not specific manifestations but may be due to an underlying cause. These codes are considered unacceptable as a principal diagnosis.

Convert to ICD-9 Additional informationCallout TooltipGeneral Equivalence Map
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

Present on Admission (POA) Additional informationCallout TooltipPresent on Admission
The Present on Admission (POA) indicator is used for diagnosis codes included in claims involving inpatient admissions to general acute care hospitals. POA indicators must be reported to CMS on each claim to facilitate the grouping of diagnoses codes into the proper Diagnostic Related Groups (DRG). CMS publishes a listing of specific diagnosis codes that are exempt from the POA reporting requirement.

The code Z68.1 is exempt from POA reporting.

  • Body mass index less than 16.5
  • Body mass index less than 20
  • Decreased body mass index
  • Decreased body mass index

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