ICD-10 Code E66.8

Other obesity

Version 2019 Billable Code Questionable Admission Codes

Valid for Submission

E66.8 is a billable code used to specify a medical diagnosis of other obesity. The code is valid for the year 2020 for the submission of HIPAA-covered transactions.

ICD-10: E66.8
Short Description:Other obesity
Long Description:Other obesity

Code Classification

  • Endocrine, nutritional and metabolic diseases (E00–E90)
    • Overweight, obesity and other hyperalimentation (E65-E68)
      • Overweight and obesity (E66)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (first year ICD-10-CM implemented into the HIPAA mandated code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020

Information for Medical Professionals

Code Edits

The Medicare Code Editor (MCE) detects and reports errors in the coding of claims data. The following ICD-10 Code Edits are applicable to this code:

  • Questionable admission codes - Some diagnoses are not usually sufficient justification for admission to an acute care hospital. For example, if a patient is given code R030 for elevated blood pressure reading, without diagnosis of hypertension, then the patient would have a questionable admission, since elevated blood pressure reading is not normally sufficient justification for admission to a hospital.

Diagnostic Related Groups

The Diagnostic Related Groups (DRGs) are a patient classification scheme which provides a means of relating the type of patients a hospital treats. The DRGs divides all possible principal diagnoses into mutually exclusive principal diagnosis areas referred to as Major Diagnostic Categories (MDC). The diagnosis code E66.8 is grouped in the following groups for version MS-DRG V37.0 applicable from 10/01/2020 through 09/30/2020.

  • 640 - MISCELLANEOUS DISORDERS OF NUTRITION, METABOLISM, FLUIDS AND ELECTROLYTES WITH MCC
  • 641 - MISCELLANEOUS DISORDERS OF NUTRITION, METABOLISM, FLUIDS AND ELECTROLYTES WITHOUT MCC

Convert E66.8 to ICD-9

The following crosswalk between ICD-10 to ICD-9 is based based on the General Equivalence Mappings (GEMS) information:

  • 278.00 - Obesity NOS (Approximate Flag)

Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Adult-onset obesity
  • Android obesity
  • Aniridia, ptosis, intellectual disability, familial obesity syndrome
  • Buffalo obesity
  • Central obesity
  • Central obesity
  • Childhood obesity
  • Congenital hypoplasia of penis
  • Constitutional obesity
  • Endogenous obesity
  • Familial obesity
  • Gynecoid obesity
  • Hydrocephalus with obesity and hypogonadism syndrome
  • Hyperinsulinar obesity
  • Hyperplastic obesity
  • Hyperplastic-hypertrophic obesity
  • Hypertrophic obesity
  • Hypogonadal obesity
  • Hypothalamic disorder of appetite
  • Hypothalamic obesity
  • MEHMO syndrome
  • MORM syndrome
  • Obesity by adipocyte growth pattern
  • Obesity by adipocyte growth pattern
  • Obesity by adipocyte growth pattern
  • Obesity by age of onset
  • Obesity by age of onset
  • Obesity caused by energy imbalance
  • Obesity due to melanocortin 4 receptor deficiency
  • Obesity due to prohormone convertase I deficiency
  • Obesity of endocrine origin
  • Obesity, colitis, hypothyroidism, cardiac hypertrophy, developmental delay syndrome
  • Peripheral obesity
  • Pulmonary hypertension associated with chronic underventilation
  • Pulmonary hypertension due to lung disease and/or hypoxia
  • Pulmonary hypertension with extreme obesity
  • Rapid-onset childhood obesity, hypothalamic dysfunction, hypoventilation, autonomic dysregulation syndrome

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code E66.8 are found in the index:


Information for Patients


Obesity

Obesity means having too much body fat. It is different from being overweight, which means weighing too much. The weight may come from muscle, bone, fat, and/or body water. Both terms mean that a person's weight is greater than what's considered healthy for his or her height.

Obesity happens over time when you eat more calories than you use. The balance between calories-in and calories-out differs for each person. Factors that might affect your weight include your genetic makeup, overeating, eating high-fat foods, and not being physically active.

Obesity increases your risk of diabetes, heart disease, stroke, arthritis, and some cancers. If you have obesity, losing even 5 to 10 percent of your weight can delay or prevent some of these diseases. For example, that means losing 10 to 20 pounds if you weigh 200 pounds.

NIH: National Institute of Diabetes and Digestive and Kidney Diseases


[Learn More]

ICD-10 Footnotes

General Equivalence Map Definitions
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

  • Approximate Flag - The approximate flag is on, indicating that the relationship between the code in the source system and the code in the target system is an approximate equivalent.
  • No Map Flag - The no map flag indicates that a code in the source system is not linked to any code in the target system.
  • Combination Flag - The combination flag indicates that more than one code in the target system is required to satisfy the full equivalent meaning of a code in the source system.