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  6. 2024 ICD-10-CM Code L12.9

2024 ICD-10-CM Diagnosis Code L12.9

Pemphigoid, unspecified

ICD-10-CM Code:
L12.9
ICD-10 Code for:
Pemphigoid, unspecified
Is Billable?
Yes - Valid for Submission
Chronic Condition Indicator: [1]
Chronic
Code Navigator:

Code Classification

  • Diseases of the skin and subcutaneous tissue
    (L00–L99)

L12.9 is a billable diagnosis code used to specify a medical diagnosis of pemphigoid, unspecified. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024.

Unspecified diagnosis codes like L12.9 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.

Approximate Synonyms

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

  • Chronic localized pemphigoid
  • Localized pemphigoid
  • Pemphigoid
  • Pretibial pemphigoid

Clinical Classification

Clinical Information

  • Benign Mucous Membrane Pemphigoid

    a chronic autoimmune disorder characterized by the development of blisters and ulcers in mucous membranes. it affects most often the gums, eyelids and genital mucosa sites.

  • Bullous Pemphigoid

    an autoimmune chronic skin disorder characterized by the presence of large blisters. it usually affects elderly people and tends to subside spontaneously.

  • COL17A1 wt Allele|BA16H23.2|BA16H23.2 (Collagen, Type XVII, Alpha 1 (BP180)) Gene|BP180|BPA-2|BPAG2|Bullous Pemphigoid Antigen 2 (180kD) Gene|Collagen Type XVII Alpha 1 Chain wt Allele|Collagen, Type XVII, Alpha 1 Gene|Collagen, Type XVII, Alpha-1 Gene|ERED|LAD-1

    human col17a1 wild-type allele is located in the vicinity of 10q25.1 and is approximately 55 kb in length. this allele, which encodes collagen alpha-1(xvii) chain protein, is involved in hemidesmosome formation and keratinocyte adhesion. mutation of the gene and immunoreactivity during revertant mosaicism is associated with both generalized atrophic benign and junctional epidermolysis bullosa. mutations in the gene are also associated with epithelial recurrent erosion dystrophy.

  • Collagen Alpha-1(XVII) Chain|180 kDa Bullous Pemphigoid Antigen 2|Alpha 1 Type XVII Collagen|Bullous Pemphigoid Antigen 2|COL17A1|Collagen Type XVII Alpha 1 Chain|Collagen Type XVII Alpha 1 Polypeptide|Type XVII Collagen Alpha-1

    collagen alpha-1(xvii) chain (1497 aa, ~150 kda) is encoded by the human col17a1 gene. this protein plays a role in the attachment of keratinocytes to the basement membrane.

  • Dystonin|230 kDa Bullous Pemphigoid Antigen|230/240 kDa Bullous Pemphigoid Antigen|Bullous Pemphigoid Antigen|Bullous Pemphigoid Antigen 1|Bullous Pemphigoid Antigen 1, 230/240kDa|DST|Dystonia Musculorum Protein|Hemidesmosomal Plaque Protein|Trabeculin-Beta

    dystonin (7570 aa, ~860 kda) is encoded by the human dst gene. this protein plays a structural role in cytoskeleton networks.

  • Ocular Cicatricial Pemphigoid

    a chronic autoimmune disorder that belongs to the mucous membrane pemphigoid disorders. it is characterized by bilateral scarring and opacification of the conjunctivae. it presents with pain and burning sensation in the eyes and photophobia. it leads to blindness.

  • Pemphigoid

    a rare autoimmune blistering skin disorder that resembles pemphigus but is histologically and clinically distinguishable by lack of evidence of acantholysis and a generally benign course.

  • Pemphigoid Antibody Measurement|PEMAB|Pemphigoid Antibodies|Pemphigoid Antibodies

    the determination of the amount of pemphigoid antibodies present in a sample.

  • Pemphigoid Gestationis|Gestational Pemphigoid|Gestational Pemphigoid|Herpes Gestationis

    an autoimmune bullous dermatitis that develops during pregnancy, most often during the second and third trimesters.

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 L12.9 to ICD-9-CM

  • ICD-9-CM Code: 694.5 - Pemphigoid
    Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.

Patient Education


Pemphigus

Pemphigus is an autoimmune disorder. If you have it, your immune system attacks healthy cells in your skin and mouth, causing blisters and sores. No one knows the cause. Pemphigus does not spread from person to person. It does not appear to be inherited. But some people's genes put them more at risk for pemphigus.

Pemphigoid is also an autoimmune skin disease. It leads to deep blisters that do not break easily. Pemphigoid is most common in older adults and may be fatal for older, sick patients.

Doctors diagnose pemphigus with a physical exam, a biopsy, and blood tests. The treatment of pemphigus and pemphigoid is the same: one or more medicines to control symptoms. These may include:

  • Steroids, which reduce inflammation
  • Drugs that suppress the immune system response
  • Antibiotics to treat associated infections

NIH: National Institute of Arthritis and Musculoskeletal and Skin Diseases


[Learn More in MedlinePlus]

Pemphigus

Pemphigus is a rare disease that causes blistering on many parts of the body, including  the skin and the inside of the mouth, nose, throat, eyes, and genitals.
[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] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.