ICD-10-CM 2027 diagnosis code
L83Acanthosis nigricans
L83 is a valid, billable ICD-10-CM code for acanthosis nigricans. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.
Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS, effective October 1, 2026. Updated September 29, 2026. About our data
About L83
L83 is the ICD-10-CM diagnosis code for acanthosis nigricans. It belongs to block L80-L99 (other disorders of the skin and subcutaneous tissue) and chapter 12 (diseases of the skin and subcutaneous tissue). 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 606 (Minor Skin Disorders with MCC, relative weight 1.5728) and DRG 607 (Minor Skin Disorders without MCC, relative weight 0.8772), in MDC 09 (Diseases and Disorders of the Skin, Subcutaneous Tissue and Breast), 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 701.2 (acquired acanthosis nigricans).
Coding notes
- Confluent and reticulated papillomatosis
Notes that apply from higher levels
Instructions written at a parent level also apply to L83.
Broader instructions also apply from Chapter 12: Diseases of the skin and subcutaneous tissue.
Alphabetic index entries
4 entriesTerms in the official ICD-10-CM index that lead to L83.
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 09 · Diseases and Disorders of the Skin, Subcutaneous Tissue and Breast
ICD-9-CM equivalent
Converter →- 701.2Acquired acanthosis nigricansexact
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 L83
Is L83 billable?
- Yes. L83 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can L83 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict L83 as a principal diagnosis.
Is L83 a CC or MCC?
- No. L83 is neither a CC nor an MCC under MS-DRG v44.0.
What DRG does L83 group to?
- L83 is used in the MS-DRG v44.0 logic for MS-DRG 606 (Minor Skin Disorders with MCC) and MS-DRG 607 (Minor Skin Disorders 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 L83?
- The CMS General Equivalence Mappings map L83 to ICD-9-CM 701.2.