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L83 ICD-10-CA code: Acanthosis nigricans

L83 is the ICD-10-CA code for “Acanthosis nigricans” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.

Official description

L83

Acanthosis nigricans

ICD-10-CA · Canada

Index terms

Entries in CIHI’s alphabetical index that lead to L83. Searching the index by the condition the note names is how coders reach this code.

  • Keratosis, nigricans
  • Acanthosis (acquired) (nigricans)
  • Gougerot Carteaud disease or syndrome
  • Papillomatosis, confluent and reticulated

Notes for L83

As CIHI prints them, with any note L83 takes from the headings above it.

Includes

  • Confluent and reticulated papillomatosis

Excludes

Conditions classified elsewhere.

  • Certain:• conditions originating in the perinatal period (P00-P96)• infectious and parasitic diseases (A00-B99)complications of pregnancy, childbirth and the puerperium (O00-O99)congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)endocrine, nutritional and metabolic diseases (E00-E90)injury, poisoning and certain other consequences of external causes (S00-T98)lipomelanotic reticulosis (I89.8)neoplasms (C00-D48)symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)systemic connective tissue disorders (M30-M36)From Chapter 12: Diseases of the skin and subcutaneous tissue (L00-L99)

Where L83 sits

  1. 1ChapterChapter 12: Diseases of the skin and subcutaneous tissue (L00-L99)
  2. 2Block L80-L99Other disorders of the skin and subcutaneous tissue
  3. 3Valid code L83Acanthosis nigricans

Source and release

Data release
ICD-10-CA · FY 2026–2027
Effective date
Apr 1, 2026
Publisher
CIHI

This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.

See L83 in the CIHI source

Frequently asked questions

What does ICD-10-CA code L83 mean?

L83 is the ICD-10-CA code for “Acanthosis nigricans” in CIHI’s ICD-10-CA FY 2026–2027 release.

Where is L83 in ICD-10-CA?

L83 sits under L80-L99 Other disorders of the skin and subcutaneous tissue, within Chapter 12: Diseases of the skin and subcutaneous tissue (L00-L99).

What coding notes apply to L83?

ICD-10-CA lists Includes, Excludes notes for L83, including those from the headings it sits under. They are listed on this page with where each one comes from.

Which ICD-10-CA release does this page use?

It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.

Codes beside L83

L80VitiligoL81Other disorders of pigmentationL82Seborrhoeic keratosisL84Corns and callositiesL85Other epidermal thickeningL86Keratoderma in diseases classified elsewhereL87Transepidermal elimination disordersL88Pyoderma gangrenosumL89Decubitus [pressure] ulcer and pressure areaL90Atrophic disorders of skinL91Hypertrophic disorders of skinL92Granulomatous disorders of skin and subcutaneous tissueL93Lupus erythematosusL94Other localized connective tissue disordersL95Vasculitis limited to skin, not elsewhere classifiedL97Ulcer of lower limb, not elsewhere classifiedL98Other disorders of skin and subcutaneous tissue, not elsewhere classifiedL99Other disorders of skin and subcutaneous tissue in diseases classified elsewhere