2021 ICD-10-CM Code L98.429

Non-pressure chronic ulcer of back with unspecified severity

  1. ICD-10-CM Index
  2. Chapter: L00–L99
  3. Section: L80-L99
  4. Block: L98
  5. L98.429 - Non-pressure chronic ulcer of back with unspecified severity
Version 2021
Replaced Code
Billable Code
Unspecified Code
MS-DRG Mapping

Valid for Submission

L98.429 is a billable diagnosis code used to specify a medical diagnosis of non-pressure chronic ulcer of back with unspecified severity. The code L98.429 is valid during the fiscal year 2021 from October 01, 2020 through September 30, 2021 for the submission of HIPAA-covered transactions.

The ICD-10-CM code L98.429 might also be used to specify conditions or terms like chronic skin ulcer of sacrum, chronic ulcer of back, chronic ulcer of sacral region or ulcer of back.

Unspecified diagnosis codes like L98.429 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.

ICD-10:L98.429
Short Description:Non-pressure chronic ulcer of back with unspecified severity
Long Description:Non-pressure chronic ulcer of back with unspecified severity

Code Classification

Replaced Code

This code was replaced in the 2021 ICD-10 code set with the code(s) listed below. The National Center for Health Statistics (NCHS) has published an update to the ICD-10-CM diagnosis codes which became effective October 1, 2020. This code was replaced for the FY 2021 (October 1, 2020 - September 30, 2021).


  • L98.425 - Non-prs chr ulcer of back with muscle invl w/o evd of necr
  • L98.425 - Non-prs chr ulcer of back with muscle invl w/o evd of necr
  • L98.426 - Non-prs chr ulcer of back with bone invl without evd of necr
  • L98.426 - Non-prs chr ulcer of back with bone invl without evd of necr
  • L98.428 - Non-pressure chronic ulcer of back with oth severity
  • L98.428 - Non-pressure chronic ulcer of back with oth severity

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code L98.429 are found in the index:

Approximate Synonyms

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

Convert L98.429 to ICD-9 Code

The General Equivalency Mapping (GEM) crosswalk indicates an approximate mapping between the ICD-10 code L98.429 its ICD-9 equivalent. The approximate mapping means there is not an exact match between the ICD-10 code and the ICD-9 code and the mapped code is not a precise representation of the original code.

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


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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)

Previous Code: L98.428

Related Codes

Next Code: L98.49