Z68.41 — Body mass index [BMI] 40.0-44.9, adult

Z68.41

ICD-10 Chapter 21: Factors Influencing Health Status — illustrative image — Chapter 21: Factors influencing health status and contact with health services (Z00–Z99) — illustrative image

What this code means

A body mass index of 40.0–44.9 in an adult, within the class III (severe) obesity range.

Also called: bmi 40, body mass index 40.0-44.9.

When this code is used

Used for body mass index (BMI) 40.0-44.9, adult, alongside the obesity code.

Where it sits in ICD-10-CM

Code Z68.41 belongs to Chapter 21: Factors influencing health status and contact with health services, which covers codes Z00–Z99 in the FY2027 ICD-10-CM tabular list. The official description above is copied verbatim from the CDC/NCHS FY2027 code file.

Learn more about this condition

Condition guide: Obesity

Frequently asked questions

What is ICD-10-CM code Z68.41?

Z68.41 is the ICD-10-CM diagnosis code for “Body mass index [BMI] 40.0-44.9, adult”. A body mass index of 40.0–44.9 in an adult, within the class III (severe) obesity range.

When is code Z68.41 used?

Used for body mass index (BMI) 40.0-44.9, adult, alongside the obesity code. It belongs to Chapter 21 of ICD-10-CM (Factors influencing health status and contact with health services).

This guide explains ICD-10-CM codes in plain language for patients, students and other readers. It is educational information only — not coding, billing or medical advice. The code recorded for any real encounter is assigned from the full clinical documentation by the treating team and qualified coders, and only they can decide which code fits a specific case.