2025
ICD-10-CM
Diagnosis
Code

E66 Overweight and obesity

  • Non-billable
  • 2016–2025

E66 is a non-billable/non-specific diagnosis code from the 2025 ICD-10-CM used to classify the following condition: Overweight and obesity.

Code first

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

Use additional code

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

Type 2 excludes

  • Adiposogenital dystrophy (E23.6)

  • Lipomatosis dolorosa [Dercum] (E88.2)

  • Lipomatosis NOS (E88.2)

  • Prader-Willi syndrome (Q87.11)

Codes

Versions

  1. 2025

    Code changed

    • Type 1 excludes

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

    • Type 2 excludes

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

    • Use additional code

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

  2. 2024

    No changes

  3. 2023

    No changes

  4. 2022

    No changes

  5. 2021

    No changes

  6. 2020

    Code changed

    • Type 1 excludes

        • adiposogenital dystrophy (E23.6)
        • lipomatosis NOS (E88.2)
        • lipomatosis dolorosa [Dercum] (E88.2)
        • Prader-Willi syndrome (Q87.1)
        • adiposogenital dystrophy (E23.6)
        • lipomatosis NOS (E88.2)
        • lipomatosis dolorosa [Dercum] (E88.2)
        • Prader-Willi syndrome (Q87.11)

  7. 2019

    No changes

  8. 2018

    No changes

  9. 2017

    No changes

  10. 2016

    New code