L12.1 — Cicatricial pemphigoid
Is L12.1 billable?
Yes — L12.1 is billable for FY2027. L12.1 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. L12.1 may be submitted for encounters from October 1, 2026 through September 30, 2027.
L12.1 at a glance
| Code | L12.1 |
|---|---|
| Description | Cicatricial pemphigoid |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does L12.1 group to?
L12.1 sits in MDC 09 and helps define the logic of 2 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 595Major Skin Disorders with MCCmedical
- 596Major Skin Disorders without MCCmedical
How is L12.1 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to L12.1. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Pemphigoid › benign, mucous membrane
- Pemphigoid › cicatricial
- Pemphigoid › ocular
- Pemphigus › conjunctiva
- Pemphigus › ocular
- Dermatitis › bullous, bullosa › mucosynechial, atrophic (eczematous)
Inclusion terms
Alternative wording in documentation that is classified to L12.1.
- Benign mucous membrane pemphigoid
Excludes1 — never code together — inherited from L10-L14
The conditions below can never be reported together with L12.1 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Excludes1 — never code together — inherited from L12
The conditions below can never be reported together with L12.1 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Excludes2 — not included here — inherited from Chapter 12
The conditions below are not part of L12.1, but a patient may have both at the same time. When documentation supports it, L12.1 and the excluded code may both be reported.
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- lipomelanotic reticulosis (I89.8)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
- systemic connective tissue disorders (M30-M36)
- viral warts (B07.-)
How long has L12.1 existed?
L12.1 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.