ICD-10-CM 2027 diagnosis code
E65Localized adiposity
E65 is a valid, billable ICD-10-CM code for localized adiposity. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.
Looking up by condition? See ICD-10 code for Localized pad fat, ICD-10 code for Panniculus adiposus.
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About E65
E65 is the ICD-10-CM diagnosis code for localized adiposity. It belongs to block E65-E68 (Overweight, obesity and other hyperalimentation) and chapter 4 (endocrine, nutritional and metabolic diseases). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 640 (Miscellaneous Disorders of Nutrition, Metabolism, Fluids and Electrolytes with MCC, relative weight 1.3395) and DRG 641 (Miscellaneous Disorders of Nutrition, Metabolism, Fluids and Electrolytes without MCC, relative weight 0.7865), in MDC 10 (Endocrine, Nutritional and Metabolic Diseases and Disorders), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Before ICD-10, this condition was coded in ICD-9-CM as 278.1 (localized adiposity).
Coding notes
- Fat pad
Notes that apply from higher levels
Instructions written at a parent level also apply to E65.
Broader instructions also apply from Chapter 4: Endocrine, nutritional and metabolic diseases.
Alphabetic index entries
9 entriesTerms in the official ICD-10-CM index that lead to E65.
- Adiposity › localized
- Excess, excessive, excessively › fat › localized
- Fat › localized (pad)
- Fat › pad
- Fatty › apron
- Hypertrophy, hypertrophic › fat pad
- Panniculus adiposus (abdominal)
- Pannus (allergic) (cornea) (degenerativus) (keratic) › abdominal (symptomatic)
- Redundant, redundancy › panniculus (abdominal)
Codes whose notes reference E65
- R22Excludes1
MS-DRG v44.0 grouping
All DRGs →Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.
MDC 10 · Endocrine, Nutritional and Metabolic Diseases and Disorders
ICD-9-CM equivalent
Converter →- 278.1Localized adiposityexact
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about E65
Is E65 billable?
- Yes. E65 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can E65 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict E65 as a principal diagnosis.
Is E65 a CC or MCC?
- No. E65 is neither a CC nor an MCC under MS-DRG v44.0.
What DRG does E65 group to?
- E65 is used in the MS-DRG v44.0 logic for MS-DRG 640 (Miscellaneous Disorders of Nutrition, Metabolism, Fluids and Electrolytes with MCC) and MS-DRG 641 (Miscellaneous Disorders of Nutrition, Metabolism, Fluids and Electrolytes without MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.
What is the ICD-9 code for E65?
- The CMS General Equivalence Mappings map E65 to ICD-9-CM 278.1.