1. ICD-10-CM Codes
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2. E00-E89
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3. E65-E68
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4. E66-
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5. 2023 ICD-10-CM Diagnosis Code E66.9

2023 ICD-10-CM Diagnosis Code E66.9

Obesity, unspecified

2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code Questionable As Admission Dx

• E66.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
• The 2023 edition of ICD-10-CM E66.9 became effective on October 1, 2022.
• This is the American ICD-10-CM version of E66.9 - other international versions of ICD-10 E66.9 may differ.

• E66.9 is not usually sufficient justification for admission to an acute care hospital when used a principal diagnosis.

• Adult obesity with bmi between 30 to 30.9
• Adult obesity with bmi between 31 to 31.9
• Adult obesity with bmi between 32 to 32.9
• Adult obesity with bmi between 33 to 33.9
• Adult obesity with bmi between 34 to 34.9
• Adult obesity with bmi between 35 to 35.9
• Adult obesity with bmi between 36 to 36.9
• Adult obesity with bmi between 37 to 37.9
• Adult obesity with bmi between 38 to 38.9
• Adult obesity with bmi between 39 to 39.9
• Childhood obesity
• Childhood obesity, bmi 95-100 percentile
• Maternal obesity complicating pregnancy, childbirth and the puerperium, antepartum
• Maternal obesity during childbirth
• Maternal obesity in pregnancy
• Obesity (body mass index 96-100 percentile for age)
• Obesity body mass index (bmi) 95-99 percentile for age
• Obesity complicating period after childbirth
• Obesity counseling
• Obesity counseling done
• Obesity in childbirth
• Obesity in pregnancy
• Obesity of adult, bmi 30-34.9
• Obesity of adult, bmi 35-39.9
• Obesity, bmi 30-34.9, adult
• Obesity, bmi 35-39.9, adult
• Obesity, body mass index (bmi) 30-30.9
• Obesity, body mass index (bmi) 31-31.9
• Obesity, body mass index (bmi) 32-32.9
• Obesity, body mass index (bmi) 33-33.9
• Obesity, body mass index (bmi) 34-34.9
• Obesity, body mass index (bmi) 35-35.9
• Obesity, body mass index (bmi) 36-36.9
• Obesity, body mass index (bmi) 37-37.9
• Obesity, body mass index (bmi) 38-38.9
• Obesity, body mass index (bmi) 39-39.9
• Postpartum obesity

• A condition marked by an abnormally high, unhealthy amount of body fat.
• A disorder characterized by having a high amount of body fat.
• A status with body weight that is grossly above the acceptable or desirable weight, usually due to accumulation of excess fats in the body. The standards may vary with age, sex, genetic or cultural background. In the body mass index, a bmi greater than 30.0 kg/m2 is considered obese, and a bmi greater than 40.0 kg/m2 is considered morbidly obese (morbid obesity).
• Excessively high accumulation of body fat or adipose tissue in relation to lean body mass; the amount of body fat (or adiposity) includes concern for both the distribution of fat throughout the body and the size of the adipose tissue deposits; individuals are usually at high clinical risk because of excess amount of body fat (bmi greater than 30).
• Having a high amount of body fat (body mass index [bmi] of 30 or more).
• Having a high amount of body fat. A person is considered obese if they have a body mass index (bmi) of 30 or more.
• Obesity means having too much body fat. It is different from being overweight, which means weighing too much. The weight may come from muscle, bone, fat and/or body water. Both terms mean that a person's weight is greater than what's considered healthy for his or her height. Obesity occurs over time when you eat more calories than you use. The balance between calories-in and calories-out differs for each person. Factors that might tip the balance include your genetic makeup, overeating, eating high-fat foods and not being physically active. Being obese increases your risk of diabetes, heart disease, stroke, arthritis and some cancers. If you are obese, losing even 5 to 10 percent of your weight can delay or prevent some of these diseases.

• 640 Miscellaneous disorders of nutrition, metabolism, fluids and electrolytes with mcc
• 641 Miscellaneous disorders of nutrition, metabolism, fluids and electrolytes without mcc

Convert E66.9 to ICD-9-CM

• 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
• 2017 (effective 10/1/2016): No change
• 2018 (effective 10/1/2017): No change
• 2019 (effective 10/1/2018): No change
• 2020 (effective 10/1/2019): No change
• 2021 (effective 10/1/2020): No change
• 2022 (effective 10/1/2021): No change
• 2023 (effective 10/1/2022): No change

• Obesity E66.9

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.