AutoICD API

E66.81

Non-billable

Obesity class

Obesity class

This is a header/category code. For billing purposes, use a more specific child code from the list below.

Status

Non-billable / Header

Block

E65-E68

Parent Code

E66.8

Child Codes

3

Coding Notes

Excludes 1

Codes that cannot be used together with this code (mutual exclusion)

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

Excludes 2

Conditions not included here, but the patient may have both

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

Code First

The underlying condition must be sequenced before this code

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

Use Additional Code

Additional codes that should follow this code

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

Child Codes (3)

E66.811

Obesity, class 1

BillableE66.812

Obesity, class 2

BillableE66.813

Obesity, class 3

Billable

Also Known As / Clinical Terms

UMLS

Frequently Asked Questions

What is the ICD-10 code for obesity class?

The ICD-10-CM code for obesity class is E66.81. The full clinical description is "Obesity class". E66.81 is a non-billable header code. Use a more specific child code for billing purposes.

What does ICD-10 code E66.81 mean?

ICD-10-CM code E66.81 represents "Obesity class". It is classified under Chapter 4: Endocrine, Nutritional and Metabolic Diseases and is a non-billable header code. Use a more specific child code for billing purposes.

Is E66.81 a billable code?

No, E66.81 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 3 child codes under E66.81.

What chapter is E66.81 in?

E66.81 is in Chapter 4: Endocrine, Nutritional and Metabolic Diseases (codes E00-E89).

What codes cannot be used with E66.81?

E66.81 has Excludes1 notes indicating codes that cannot be used together with it, including: transitory endocrine and metabolic disorders specific to newborn (P70-P74).

What are the subcategories under E66.81?

E66.81 has 3 child codes, including: E66.811 (Obesity, class 1), E66.812 (Obesity, class 2), E66.813 (Obesity, class 3).

Are additional codes required with E66.81?

Yes, when using E66.81 you should also code: code to identify body mass index (BMI), if known, for adults (Z68.1-Z68.45) or pediatrics (Z68.5-).

What are the UMLS CUIs for E66.81?

E66.81 is linked to 1 UMLS Concept Unique Identifier: C5926646. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.

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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.