L43 - Lichen planus
| ICD-10: | L43 |
| Short Description: | Lichen planus |
| Long Description: | Lichen planus |
| Status: | Not Valid for Submission |
| Version: | ICD-10-CM 2023 |
| Code Classification: |
L43 is a non-specific and non-billable ICD-10 code code, consider using a code with a higher level of specificity for a diagnosis of lichen planus. The code is not specific and is NOT valid for the year 2023 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.
Clinical Information
- Lichen Planus-. an inflammatory, pruritic disease of the skin and mucous membranes, which can be either generalized or localized. it is characterized by distinctive purplish, flat-topped papules having a predilection for the trunk and flexor surfaces. the lesions may be discrete or coalesce to form plaques. histologically, there is a "saw-tooth" pattern of epidermal hyperplasia and vacuolar alteration of the basal layer of the epidermis along with an intense upper dermal inflammatory infiltrate composed predominantly of t-cells. etiology is unknown.
- Lichen Planus, Oral-. oral lesions accompanying cutaneous lichen planus or often occurring alone. the buccal mucosa, lips, gingivae, floor of the mouth, and palate are usually affected (in a descending order of frequency). typically, oral lesions consist of radiating white or gray, velvety, threadlike lines, arranged in a reticular pattern, at the intersection of which there may be minute, white, elevated dots or streaks (wickham's striae). (jablonski, illustrated dictionary of dentistry)
- Atrophic Lichen Planus-. a rare form of lichen planus that is characterized by well-demarcated, white-bluish papules or plaques with central atrophy.
- Bullous Lichen Planus-. a rare form of lichen planus that is characterized by the formation of vesico-bullous lesions on top of preexisting lichen planus papules or on normal skin.
- Hypertrophic Lichen Planus-. a form of lichen planus that is characterized by plaques of markedly thickened skin that is often extremely pruritic and localized to the lower legs. it can result in permanent pigmentation and scarring.
- Lichen Planus-. a chronic, recurrent, pruritic inflammatory disorder of unknown etiology that affects the skin and mucus membranes. it presents with rashes and papules that tend to resolve spontaneously. it may be associated with hepatitis c. certain drugs that contain arsenic or bismuth are associated with reactions mimicking lichen planus.
- Lichen Planus-Like Keratosis|Lichenoid Keratosis-. a benign intraepidermal squamoproliferative neoplasm characterized by irregular acanthosis, hyperkeratosis, parakeratosis, and prominent chronic inflammation.
- Lichenoid Drug Eruption|Drug-induced Lichen Planus|Drug-induced Lichen Planus-. a red or violaceous flat-topped, papular eruption that is induced by exposure to a variety of medications or environmental agents.
- Oral Lichen Planus-. a chronic, autoimmune inflammatory condition of the mucous membranes in the oral cavity that affects approximately two percent of the population and is most often seen in middle aged women. it is characterized by white, lacy patches; red, swollen tissue; papules and plaques; or open sores. the lesions are typically bilateral.
Specific Coding for Lichen planus
Non-specific codes like L43 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 lichen planus:
- BILLABLE CODE - Use L43.0 for Hypertrophic lichen planus
- BILLABLE CODE - Use L43.1 for Bullous lichen planus
- BILLABLE CODE - Use L43.2 for Lichenoid drug reaction
- BILLABLE CODE - Use L43.3 for Subacute (active) lichen planus
- BILLABLE CODE - Use L43.8 for Other lichen planus
- BILLABLE CODE - Use L43.9 for Lichen planus, unspecified
Tabular List of Diseases and Injuries
The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more. The following references are applicable to this diagnosis code:
Type 1 Excludes
Type 1 ExcludesA type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
- lichen planopilaris L66.1
Patient Education
Skin Conditions
Your skin is your body's largest organ. It covers and protects your body. Your skin:
- Holds body fluids in, preventing dehydration
- Keeps harmful microbes out, preventing infections
- Helps you feel things like heat, cold, and pain
- Keeps your body temperature even
- Makes vitamin D when the sun shines on it
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 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 (First year ICD-10-CM implemented into the HIPAA code set)
