2017/18 ICD-10-CM Diagnosis Code E66

Overweight and obesity

Use Additional
Use Additional Help
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. In most cases the manifestation codes will have in the code title, "in diseases classified elsewhere." Codes with this title are a component of the etiology/manifestation convention. The code title indicates that it is a manifestation code. "In diseases classified elsewhere" codes are never permitted to be used as first listed or principle diagnosis codes. They must be used in conjunction with an underlying condition code and they must be listed following the underlying condition.
  • code to identify body mass index (BMI), if known (
    ICD-10-CM Diagnosis Code Z68
    • Z68 Body mass index [BMI]
      • Z68.1 Body mass index (BMI) 19.9 or less, adult
      • Z68.2 Body mass index (BMI) 20-29, adult
        • Z68.20 Body mass index (BMI) 20.0-20.9, adult
        • Z68.21 Body mass index (BMI) 21.0-21.9, adult
        • Z68.22 Body mass index (BMI) 22.0-22.9, adult
        • Z68.23 Body mass index (BMI) 23.0-23.9, adult
        • Z68.24 Body mass index (BMI) 24.0-24.9, adult
        • Z68.25 Body mass index (BMI) 25.0-25.9, adult
        • Z68.26 Body mass index (BMI) 26.0-26.9, adult
        • Z68.27 Body mass index (BMI) 27.0-27.9, adult
        • Z68.28 Body mass index (BMI) 28.0-28.9, adult
        • Z68.29 Body mass index (BMI) 29.0-29.9, adult
      • Z68.3 Body mass index (BMI) 30-39, adult
        • Z68.30 Body mass index (BMI) 30.0-30.9, adult
        • Z68.31 Body mass index (BMI) 31.0-31.9, adult
        • Z68.32 Body mass index (BMI) 32.0-32.9, adult
        • Z68.33 Body mass index (BMI) 33.0-33.9, adult
        • Z68.34 Body mass index (BMI) 34.0-34.9, adult
        • Z68.35 Body mass index (BMI) 35.0-35.9, adult
        • Z68.36 Body mass index (BMI) 36.0-36.9, adult
        • Z68.37 Body mass index (BMI) 37.0-37.9, adult
        • Z68.38 Body mass index (BMI) 38.0-38.9, adult
        • Z68.39 Body mass index (BMI) 39.0-39.9, adult
      • Z68.4 Body mass index (BMI) 40 or greater, adult
        • Z68.41 Body mass index (BMI) 40.0-44.9, adult
        • Z68.42 Body mass index (BMI) 45.0-49.9, adult
        • Z68.43 Body mass index (BMI) 50-59.9 , adult
        • Z68.44 Body mass index (BMI) 60.0-69.9, adult
        • Z68.45 Body mass index (BMI) 70 or greater, adult
      • Z68.5 Body mass index (BMI) pediatric
        • Z68.51 Body mass index (BMI) pediatric, less than 5t...
        • Z68.52 Body mass index (BMI) pediatric, 5th percenti...
        • Z68.53 Body mass index (BMI) pediatric, 85th percent...
        • Z68.54 Body mass index (BMI) pediatric, greater than...
    Z68.-
    )
Code First
Code First Help
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. In most cases the manifestation codes will have in the code title, "in diseases classified elsewhere." Codes with this title are a component of the etiology/manifestation convention. The code title indicates that it is a manifestation code. "In diseases classified elsewhere" codes are never permitted to be used as first listed or principle diagnosis codes. They must be used in conjunction with an underlying condition code and they must be listed following the underlying condition.
  • obesity complicating pregnancy, childbirth and the puerperium, if applicable (
    ICD-10-CM Diagnosis Code O99.21

    Obesity complicating pregnancy, childbirth, and the puerperium

      2016 2017 2018 Non-Billable/Non-Specific Code
    Use Additional
    • code to identify the type of obesity (E66.-)
    O99.21-
    )
Type 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as E66. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • adiposogenital dystrophy (
    ICD-10-CM Diagnosis Code E23.6

    Other disorders of pituitary gland

      2016 2017 2018 Billable/Specific Code
    Applicable To
    • Abscess of pituitary
    • Adiposogenital dystrophy
    E23.6
    )
  • lipomatosis NOS (
    ICD-10-CM Diagnosis Code E88.2

    Lipomatosis, not elsewhere classified

      2016 2017 2018 Billable/Specific Code
    Applicable To
    • Lipomatosis NOS
    • Lipomatosis (Check) dolorosa [Dercum]
    E88.2
    )
  • lipomatosis dolorosa [Dercum] (
    ICD-10-CM Diagnosis Code E88.2

    Lipomatosis, not elsewhere classified

      2016 2017 2018 Billable/Specific Code
    Applicable To
    • Lipomatosis NOS
    • Lipomatosis (Check) dolorosa [Dercum]
    E88.2
    )
  • Prader-Willi syndrome (
    ICD-10-CM Diagnosis Code Q87.1

    Congenital malformation syndromes predominantly associated with short stature

      2016 2017 2018 Billable/Specific Code POA Exempt
    Applicable To
    • Aarskog syndrome
    • Cockayne syndrome
    • De Lange syndrome
    • Dubowitz syndrome
    • Noonan syndrome
    • Prader-Willi syndrome
    • Robinow-Silverman-Smith syndrome
    • Russell-Silver syndrome
    • Seckel syndrome
    Type 1 Excludes
    • Ellis-van Creveld syndrome (Q77.6)
    • Smith-Lemli-Opitz syndrome (E78.72)
    Q87.1
    )
The following code(s) above E66 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to E66:
  • E00-E89
    2018 ICD-10-CM Range E00-E89

    Endocrine, nutritional and metabolic diseases

    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.
    Type 1 Excludes
    • transitory endocrine and metabolic disorders specific to newborn (P70-P74)
    Endocrine, nutritional and metabolic diseases
Clinical Information Code History
Code annotations containing back-references to E66:
ICD-10-CM Codes Adjacent To E66
E63.8 Other specified nutritional deficiencies
E63.9 Nutritional deficiency, unspecified
E64 Sequelae of malnutrition and other nutritional deficiencies
E64.0 Sequelae of protein-calorie malnutrition
E64.1 Sequelae of vitamin A deficiency
E64.2 Sequelae of vitamin C deficiency
E64.3 Sequelae of rickets
E64.8 Sequelae of other nutritional deficiencies
E64.9 Sequelae of unspecified nutritional deficiency
E65 Localized adiposity
E66 Overweight and obesity
E66.0 Obesity due to excess calories
E66.01 Morbid (severe) obesity due to excess calories
E66.09 Other obesity due to excess calories
E66.1 Drug-induced obesity
E66.2 Morbid (severe) obesity with alveolar hypoventilation
E66.3 Overweight
E66.8 Other obesity
E66.9 Obesity, unspecified
E67 Other hyperalimentation
E67.0 Hypervitaminosis A

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