Z68.18 – Body mass index [BMI] 18.4 or less, adult
ICD-10-CM 2027 diagnosis code · Body mass index [BMI] (Z68)
ICD-10-CM code
Z68.18
- Code
Z68.18(claims format:Z6818)- Description
- Body mass index [BMI] 18.4 or less, adult
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 21. Factors influencing health status and contact with health services (Z00-Z99)
- Block
- Z68 Body mass index [BMI] (Z68)
- Parent codes
- Z68 › Z68.1
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
Z68 – Body mass index [BMI]
Applicable to:
- Kilograms per meters squared
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)
Index terms for Z68.18
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in Z68.1
Frequently asked questions
What is ICD-10 code Z68.18?
Z68.18 is the ICD-10-CM code for body mass index [BMI] 18.4 or less, adult, in the block Z68 (Body mass index [BMI] (Z68)).
Is Z68.18 a billable code?
Yes. Z68.18 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does Z68.18 belong to?
It belongs to category Z68 – Body mass index [BMI].
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.