ICD-10-CM Codes
E00-E89
E65-E68
E66-
2023 ICD-10-CM Diagnosis Code E66.09

2023 ICD-10-CM Diagnosis Code E66.09

Other obesity due to excess calories

2016

2017

2018

2019

2020

2021

2022

2023

Billable/Specific Code

Questionable As Admission Dx

E66.09 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
The 2023 edition of ICD-10-CM E66.09 became effective on October 1, 2022.
This is the American ICD-10-CM version of E66.09 - other international versions of ICD-10 E66.09 may differ.

ICD-10-CM Coding Rules

E66.09 is not usually sufficient justification for admission to an acute care hospital when used a principal diagnosis.

The following code(s) above E66.09 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 E66.09:

E00-E89
2023 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
E66
ICD-10-CM Diagnosis Code E66
Overweight and obesity
Code First
- obesity complicating pregnancy, childbirth and the puerperium, if applicable (O99.21-)
Type 1 Excludes
- adiposogenital dystrophy (E23.6)
- lipomatosis NOS (E88.2)
- lipomatosis dolorosa [Dercum] (E88.2)
- Prader-Willi syndrome (Q87.11)
Use Additional
- code to identify body mass index (BMI), if known (Z68.-)
Overweight and obesity

ICD-10-CM E66.09 is grouped within Diagnostic Related Group(s) (MS-DRG v40.0):

640 Miscellaneous disorders of nutrition, metabolism, fluids and electrolytes with mcc
641 Miscellaneous disorders of nutrition, metabolism, fluids and electrolytes without mcc

Convert E66.09 to ICD-9-CM

Code History

2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
2017 (effective 10/1/2016): No change
2018 (effective 10/1/2017): No change
2019 (effective 10/1/2018): No change
2020 (effective 10/1/2019): No change
2021 (effective 10/1/2020): No change
2022 (effective 10/1/2021): No change
2023 (effective 10/1/2022): No change

Diagnosis Index entries containing back-references to E66.09:

Obesity E66.9
ICD-10-CM Diagnosis Code E66.9
Obesity, unspecified
Applicable To
Obesity NOS
- due to
  - excess calories E66.09
- exogenous E66.09
- nutritional E66.09

ICD-10-CM Codes Adjacent To E66.09

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

E67.1 Hypercarotenemia

E67.2 Megavitamin-B6 syndrome

E67.3 Hypervitaminosis D

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

2023 ICD-10-CM Diagnosis Code E66.09

Other obesity due to excess calories

Endocrine, nutritional and metabolic diseases

Overweight and obesity

Obesity, unspecified