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ICD-10-CM Current in FY 2027

E66.811

Obesity, class 1

Release
FY 2027
Effective
Official source (opens in a new tab)

Hierarchy

Where E66.811 sits in the official hierarchy. Each level is the code it is classified under.

  1. E66 Overweight and obesity
  2. E66.8 Other obesity
  3. E66.81 Parent Obesity class
  4. E66.811 This code Obesity, class 1

Official Coding Notes

Reproduced verbatim from the FY 2027 ICD-10-CM files. Notes labelled as inherited are declared on a parent code and apply here too.

Excludes2

adiposogenital dystrophy ( E23.6 )

Inherited from E66 — Overweight and obesity

Excludes2

lipomatosis dolorosa [Dercum] ( E88.2 )

Inherited from E66 — Overweight and obesity

Excludes2

lipomatosis NOS ( E88.2 )

Inherited from E66 — Overweight and obesity

Excludes2

Prader-Willi syndrome ( Q87.11 )

Inherited from E66 — Overweight and obesity

Code First

obesity complicating pregnancy, childbirth and the puerperium, if applicable ( O99.21- )

Inherited from E66 — Overweight and obesity

Use Additional Code

code to identify body mass index (BMI), if known, for adults (Z68.1-Z68.45) or pediatrics ( Z68.5- )

Inherited from E66 — Overweight and obesity

Version History

How E66.811 appears in each release imported from the official files, newest first.

  1. FY 2027 Effective

    Current

    Obesity, class 1

  2. FY 2026 Effective

    Unchanged

    Obesity, class 1

Related Codes

Other codes under E66.81

Data Source

Code information on this page is derived from the FY 2027 ICD-10-CM files published by CDC NCHS and CMS.

Release
FY 2027
Effective
Source file
icd10cm-code-descriptions-2027.zip

Official ICD-10-CM source files (opens in a new tab)

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