2024 ICD-10-CM Diagnosis Code L91.0

Hypertrophic scar

ICD-10-CM Code:
L91.0
ICD-10 Code for:
Hypertrophic scar
Is Billable?
Yes - Valid for Submission
Chronic Condition Indicator: [1]
Not chronic
Code Navigator:

Code Classification

  • Diseases of the skin and subcutaneous tissue
    (L00–L99)
    • Other disorders of the skin and subcutaneous tissue
      (L80-L99)
      • Hypertrophic disorders of skin
        (L91)

L91.0 is a billable diagnosis code used to specify a medical diagnosis of hypertrophic scar. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024.

Approximate Synonyms

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

  • Acne scar
  • Acne scar
  • Acne scar
  • Acne scars - mixed atrophic and hypertrophic
  • Acroosteolysis
  • Acroosteolysis, keloid-like lesions, premature aging syndrome
  • Contracture scar
  • Disorder of skin donor site
  • Ear-lobe keloid
  • Hereditary acroosteolysis
  • Hypertrophic acne scar
  • Hypertrophic scar
  • Hypertrophic scar of upper arm
  • Hypertrophic scarring of skin donor site
  • Hypertrophic surgical scar
  • Keloid acne scar
  • Keloid scar
  • Keloid scar
  • Keloidal surgical scar
  • Surgical scar
  • Surgical scar finding
  • X-linked keloid scarring, reduced joint mobility, increased optic cup-to-disc ratio syndrome

Clinical Classification

Clinical Information

  • Hypertrophic Scar

    a permanent mark on the skin caused by deposits of excessive amounts of collagen during wound healing. it is elevated and does not extend beyond the original boundaries of the wound; the elevation may stabilize or regress spontaneously.
  • Acroosteolysis

    a condition that is characterized by degeneration of the distal phalanges.

Index to Diseases and Injuries References

The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).

Convert L91.0 to ICD-9-CM

  • ICD-9-CM Code: 701.4 - Keloid scar

Patient Education


Scars

A scar is a permanent patch of skin that grows over a wound. It forms when your body heals itself after a cut, scrape, burn, or sore. You can also get scars from surgery that cuts through the skin, infections like chickenpox, or skin conditions like acne. Scars are often thicker, as well as pinker, redder, or shinier, than the rest of your skin.

How your scar looks depends on:

  • How big and deep your wound is
  • Where it is
  • How long it takes to heal
  • Your age
  • Your inherited tendency to scar

Scars usually fade over time but never go away completely. If the way a scar looks bothers you, various treatments might minimize it. These include surgical revision, dermabrasion, laser treatments, injections, chemical peels, and creams.


[Learn More in MedlinePlus]

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.