2021 ICD-10-CM Code L97.40

Non-pressure chronic ulcer of unspecified heel and midfoot

Version 2021

Not Valid for Submission

ICD-10:L97.40
Short Description:Non-pressure chronic ulcer of unspecified heel and midfoot
Long Description:Non-pressure chronic ulcer of unspecified heel and midfoot

Code Classification

  • Diseases of the skin and subcutaneous tissue (L00–L99)
    • Other disorders of the skin and subcutaneous tissue (L80-L99)
      • Non-pressure chronic ulcer of lower limb, NEC (L97)

L97.40 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of non-pressure chronic ulcer of unspecified heel and midfoot. The code is not specific and is NOT valid for the year 2021 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Unspecified diagnosis codes like L97.40 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.

Specific Coding for Non-pressure chronic ulcer of unspecified heel and midfoot

Non-specific codes like L97.40 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10 codes with a higher level of specificity when coding for non-pressure chronic ulcer of unspecified heel and midfoot:

  • BILLABLE CODE - Use L97.401 for Non-pressure chronic ulcer of unspecified heel and midfoot limited to breakdown of skin
  • BILLABLE CODE - Use L97.402 for Non-pressure chronic ulcer of unspecified heel and midfoot with fat layer exposed
  • BILLABLE CODE - Use L97.403 for Non-pressure chronic ulcer of unspecified heel and midfoot with necrosis of muscle
  • BILLABLE CODE - Use L97.404 for Non-pressure chronic ulcer of unspecified heel and midfoot with necrosis of bone
  • BILLABLE CODE - Use L97.405 for Non-pressure chronic ulcer of unspecified heel and midfoot with muscle involvement without evidence of necrosis
  • BILLABLE CODE - Use L97.406 for Non-pressure chronic ulcer of unspecified heel and midfoot with bone involvement without evidence of necrosis
  • BILLABLE CODE - Use L97.408 for Non-pressure chronic ulcer of unspecified heel and midfoot with other specified severity
  • BILLABLE CODE - Use L97.409 for Non-pressure chronic ulcer of unspecified heel and midfoot with unspecified severity

Information for Patients


Skin Conditions

Also called: Cutaneous disorders, Dermatologic disorders

Your skin is your body's largest organ. It covers and protects your body. Your skin

Anything that irritates, clogs, or inflames your skin can cause symptoms such as redness, swelling, burning, and itching. Allergies, irritants, your genetic makeup, and certain diseases and immune system problems can cause rashes, hives, and other skin conditions. Many skin problems, such as acne, also affect your appearance.

NIH: National Institute of Arthritis and Musculoskeletal and Skin Diseases


[Learn More in MedlinePlus]

Code History

  • 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 (First year ICD-10-CM implemented into the HIPAA code set)