2027 ICD-10-CM Diagnosis Code L83Acanthosis nigricans

ICD-10-CM Codes›L00–L99›L80-L99›L83

ICD-10-CM L83
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

L83 is a billable ICD-10-CM diagnosis code for acanthosis nigricans. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 606 through 607. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified and unspecified skin disorders.

Code Identity

ICD-10-CM Code
L83
Billable Status
Yes — Valid for Submission
Code Describes
Acanthosis nigricans
Short Description
Acanthosis nigricans
Same as the full description in the CMS dataset.
Chapter
L80-L99
Other disorders of the skin and subcutaneous tissue

Code Classification

ChapterL00–L99Diseases of the skin and subcutaneous tissue
SectionL80-L99Other disorders of the skin and subcutaneous tissue
CategoryL83Acanthosis nigricans
This CodeL83Acanthosis nigricans

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Acanthosis nigricans
  • Acanthosis nigricans and insulin resistance with muscle cramp and acral enlargement syndrome
  • Acanthosis nigricans due to type 2 diabetes mellitus
  • Acanthosis nigricans of oral mucous membranes
  • Acanthosis palmaris
  • Acquired acanthosis nigricans
  • Confluent AND reticulate papillomatosis
  • Crouzon syndrome
  • Crouzon syndrome with acanthosis nigricans
  • Cutaneous papillomatosis
  • Dermopathy due to type 2 diabetes mellitus
  • Diabetes mellitus due to genetic defect in insulin action
  • Diabetic dermopathy
  • Drug pigmentation
  • Drug-induced acanthosis nigricans
  • Drug-induced hypermelanosis
  • Drug-induced pigmentation
  • Extreme insulin resistance with acanthosis nigricans, hirsutism AND abnormal insulin receptors
  • Fibroblast growth factor receptor 3-related craniosynostosis
  • Hypermelanosis due to neoplasia
  • Insulin receptor defect
  • Lelis syndrome
  • Malignant acanthosis nigricans

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to L83: its own notes plus those printed at Chapter 12. A note printed at a category, block or chapter applies to every code under it.

Applicable To

Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.

  • Confluent and reticulated papillomatosis

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Chapter 12 (L00-L99) Diseases of the skin and subcutaneous tissue applies to 1,001 codes
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • lipomelanotic reticulosis (I89.8)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
  • systemic connective tissue disorders (M30-M36)
  • viral warts (B07.-)

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR SKN007
Other specified and unspecified skin disorders
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Acanthosis Nigricans

    a circumscribed melanosis consisting of a brown-pigmented, velvety verrucosity or fine papillomatosis appearing in the axillae and other body folds. it occurs in association with endocrine disorders, underlying malignancy, administration of certain drugs, or as in inherited disorder.

Patient EducationClinical

Skin Pigmentation Disorders

Pigmentation means coloring. Skin pigmentation disorders affect the color of your skin. Your skin gets its color from a pigment called melanin. Special cells in the skin make melanin. When these cells become damaged or unhealthy, it affects melanin production. Some pigmentation disorders affect just patches of skin.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert L83 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
701.2 Acq acanthosis nigricans
Exact Match The mapping is direct, with no qualifiers.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About L83Overview

What is the ICD-10 code for acanthosis nigricans?

The ICD-10-CM code for acanthosis nigricans is L83. It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is L83 (Acanthosis nigricans) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report acanthosis nigricans on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does L83 group to?

When acanthosis nigricans is the principal diagnosis on an inpatient stay, it groups to MS-DRG 607, 606, with relative weights from 0.8772 to 1.5721 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of L83?

Under the General Equivalence Mappings, acanthosis nigricans converts to ICD-9-CM 701.2 (acq acanthosis nigricans). The mapping is a direct match.