Obesity ICD-10 Codes

All ICD-10-CM diagnosis codes for obesity

obesityobesemorbid obesityoverweightBMI

Obesity is coded under E66 in ICD-10-CM. E66.01 is used for morbid (severe) obesity due to excess calories, while E66.09 covers other obesity due to excess calories. E66.1 is drug-induced obesity. BMI codes (Z68) should be reported as additional codes to specify the degree of obesity.

Total Codes

51

Billable Codes

42

Categories

2

Primary Code Categories

These are the top-level ICD-10-CM categories for obesity. Click any code to see all specific subcodes.

Billable/Specific Codes (42)

These are the specific, billable ICD-10-CM codes that can be used on medical claims for obesity.

E66.01

Morbid (severe) obesity due to excess calories

Billable
E66.09

Other obesity due to excess calories

Billable
E66.1

Drug-induced obesity

Billable
E66.2

Morbid (severe) obesity with alveolar hypoventilation

Billable
E66.3

Overweight

Billable
E66.811

Obesity, class 1

Billable
E66.812

Obesity, class 2

Billable
E66.813

Obesity, class 3

Billable
E66.89

Other obesity not elsewhere classified

Billable
E66.9

Obesity, unspecified

Billable
Z68.1

Body mass index [BMI] 19.9 or less, adult

Billable
Z68.20

Body mass index [BMI] 20.0-20.9, adult

Billable
Z68.21

Body mass index [BMI] 21.0-21.9, adult

Billable
Z68.22

Body mass index [BMI] 22.0-22.9, adult

Billable
Z68.23

Body mass index [BMI] 23.0-23.9, adult

Billable
Z68.24

Body mass index [BMI] 24.0-24.9, adult

Billable
Z68.25

Body mass index [BMI] 25.0-25.9, adult

Billable
Z68.26

Body mass index [BMI] 26.0-26.9, adult

Billable
Z68.27

Body mass index [BMI] 27.0-27.9, adult

Billable
Z68.28

Body mass index [BMI] 28.0-28.9, adult

Billable
Z68.29

Body mass index [BMI] 29.0-29.9, adult

Billable
Z68.30

Body mass index [BMI] 30.0-30.9, adult

Billable
Z68.31

Body mass index [BMI] 31.0-31.9, adult

Billable
Z68.32

Body mass index [BMI] 32.0-32.9, adult

Billable
Z68.33

Body mass index [BMI] 33.0-33.9, adult

Billable
Z68.34

Body mass index [BMI] 34.0-34.9, adult

Billable
Z68.35

Body mass index [BMI] 35.0-35.9, adult

Billable
Z68.36

Body mass index [BMI] 36.0-36.9, adult

Billable
Z68.37

Body mass index [BMI] 37.0-37.9, adult

Billable
Z68.38

Body mass index [BMI] 38.0-38.9, adult

Billable
Z68.39

Body mass index [BMI] 39.0-39.9, adult

Billable
Z68.41

Body mass index [BMI] 40.0-44.9, adult

Billable
Z68.42

Body mass index [BMI] 45.0-49.9, adult

Billable
Z68.43

Body mass index [BMI] 50.0-59.9, adult

Billable
Z68.44

Body mass index [BMI] 60.0-69.9, adult

Billable
Z68.45

Body mass index [BMI] 70 or greater, adult

Billable
Z68.51

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

Billable
Z68.52

Body mass index pediatric, 5th percentile to < 85% for age

Billable
Z68.53

Body mass index pediatric, 85% to less than 95% for age

Billable
Z68.54

Body mass index ped, 95% for age to < 120% of 95% for age

Billable
Z68.55

Body mass index ped, 120% 95% for age to < 140% 95% for age

Billable
Z68.56

Body mass index ped, > or equal to 140% of the 95% for age

Billable

Frequently Asked Questions

What is the ICD-10 code for obesity?

The primary ICD-10-CM codes for obesity are E66.01, E66.09, E66.9. There are 51 total codes related to obesity, of which 42 are billable/specific codes that can be used on medical claims.

How many ICD-10 codes are there for obesity?

There are 51 ICD-10-CM codes related to obesity. Of these, 42 are billable/specific codes. The remaining codes are non-billable header categories used to organize the specific codes underneath them.

Which obesity ICD-10 code should I use for billing?

The most commonly used billable codes for obesity include: E66.01 (Morbid (severe) obesity due to excess calories); E66.09 (Other obesity due to excess calories); E66.1 (Drug-induced obesity). The correct code depends on the specific clinical presentation. Always code to the highest level of specificity supported by the clinical documentation.

Is E66.01 a billable ICD-10 code?

Yes, E66.01 (Morbid (severe) obesity due to excess calories) is a billable/specific ICD-10-CM code that can be used on medical claims.

What are other names for obesity in ICD-10?

Obesity may also be referred to as: obesity, obese, morbid obesity, overweight, BMI. The same ICD-10-CM codes apply regardless of which term is used in the clinical documentation.

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