E66

Overweight and obesity

Non-billable header

E66 is a non-billable header code. Use one of the more specific codes below.

Inclusion terms

Includes

  • Note: All neoplasms, whether functionally active or not, are classified in Chapter 2. Appropriate codes in this chapter (i.e. E05.8, E07.0, E16-E31, E34.-) may be used as additional codes to indicate either functional activity by neoplasms and ectopic endocrine tissue or hyperfunction and hypofunction of endocrine glands associated with neoplasms and other conditions classified elsewhere.

Excludes1

Not coded here — never report together with this code.

  • transitory endocrine and metabolic disorders specific to newborn (P70-P74)

Excludes2

Not included here — may be reported together when both conditions exist.

  • adiposogenital dystrophy (E23.6)
  • lipomatosis dolorosa [Dercum] (E88.2)
  • lipomatosis NOS (E88.2)
  • Prader-Willi syndrome (Q87.11)

Code first

Sequence the underlying condition first.

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

Use additional code

Add a code to identify the following, if applicable.

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

More specific codes E66

  • E66.0Obesity due to excess caloriesHeader
  • E66.1Drug-induced obesityBillable
  • E66.2Morbid (severe) obesity with alveolar hypoventilationBillable
  • E66.3OverweightBillable
  • E66.8Other obesityHeader
  • E66.9Obesity, unspecifiedBillable

Related codes

  • E65Localized adiposityBillable
  • E67Other hyperalimentationHeader
  • E68Sequelae of hyperalimentationBillable

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