E66.1

Drug-induced obesity

Billable FY2026 2025-10-01 → 2026-09-30

Exclusions 5 never code together

E66code

Excludes2

Excludes1

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

Excludes1 — never code together. The excluded condition and this one are mutually exclusive.

Excludes2 — not included here, but the patient may have both. Code both when documented.

Instructional notes 4

Use additional code

code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)T36-T50 T36-T50

E66code

Code first

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

Use additional code

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

Notes

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.E05.8 E07.0 E16-E31 E34.-

Index entries leading here 1

Alongside this code 5 same parent — E66

Additional references

AHA Coding Clinic® Licence required

Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.

Maps to no condition category in any loaded model.

Presence is a property of the code. Untick a model to hide it everywhere.

Present FY2024–FY2027.