Z68.31
Body mass index [BMI] 31.0-31.9, adult
Billable FY2026 2025-10-01 → 2026-09-30
Instructional notes 7
Z68code
Notes
- BMI adult codes are for use for persons 20 years of age or older
- BMI pediatric codes are for use for persons 2-19 years of age.
- These percentiles are based on the growth charts published by the Centers for Disease Control and Prevention (CDC)
Inclusion terms
- Kilograms per meters squared
Z00-Z99chapter
Notes
- 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:Z00-Z99A00-Y89
- (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.
- (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.
Index entries leading here 1
- Body, bodies
- mass index (BMI)
- adult
- 31.0-31.9 Z68.31
- adult
- mass index (BMI)
Alongside this code 9 same parent — Z68.3
Z68.30 Body mass index [BMI] 30.0-30.9, adult Z68.32 Body mass index [BMI] 32.0-32.9, adult Z68.33 Body mass index [BMI] 33.0-33.9, adult Z68.34 Body mass index [BMI] 34.0-34.9, adult Z68.35 Body mass index [BMI] 35.0-35.9, adult Z68.36 Body mass index [BMI] 36.0-36.9, adult Z68.37 Body mass index [BMI] 37.0-37.9, adult Z68.38 Body mass index [BMI] 38.0-38.9, adult Z68.39 Body mass index [BMI] 39.0-39.9, adult
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.