L12.35 ICD-10-CM Code: Other acquired epidermolysis bullosa
HCC Buddy Code Card
Digital ICD-10 code-book layout with official code detail, always-visible risk models, Code Trumping, and Buddy coding guidance.
FY 2026 Apr update / Diseases of the skin and subcutaneous tissue (L00-L99) / Bullous disorders (L10-L14)
L12.35
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceOther acquired epidermolysis bullosa
A blistering skin disorder acquired later in life (not present from birth) that doesn't fit other specific epidermolysis bullosa categories.
Buddy Insight
Other acquired epidermolysis bullosa encompasses rare variants of this autoimmune skin fragility disorder not elsewhere classified.
CMS-HCC V28
00
RAF 0
CMS-HCC V24
MappedHCC 162
RAF 0.517
ACA/HHS
00
RAF 0
ESRD/PACE
MappedHCC 162
RAF 0.0
RXHCC
00
RAF 0
Code Trumping
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Code Book Path
Inclusion Terms
OfficialICD-10-CM does not list inclusion terms for L12.35 in this effective period.
Excludes 2
OfficialICD-10-CM does not list Excludes 2 notes for L12.35 in this effective period.
Related Child Codes
Includes
OfficialICD-10-CM does not list Includes notes for L12.35 in this effective period.
Excludes 1
Official- epidermolysis bullosa (congenital) (Q81.-)
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for L12.35 in this effective period.
Use Additional
OfficialICD-10-CM does not list Use Additional Code instructions for L12.35 in this effective period.
Code Also
OfficialICD-10-CM does not list Code Also instructions for L12.35 in this effective period.
Buddy Documentation Tip
MEAT Support
Audit Caution
Common Mistakes
Last updated: FY2026 ICD-10-CM Apr update, Apr 1, 2026 through Sep 30, 2026. CMS-HCC V28 is 100% phased in for payment year 2026.
Is L12.35 an HCC code?
Yes. L12.35 maps to Severe Skin Burn or Condition under the V24 model but is not retained in V28.
HCC Category Mapping
RAF weights shown are the community, non-dual, aged base weights from the CMS risk adjustment model file. Actual per-patient RAF contribution depends on member segment, interactions, and the model year used by the payer. V28 is the CMS-HCC model phased in over payment years 2024–2026; V24 remains in use during the transition and for historical data.
MEAT Criteria for L12.35
For L12.35to count as a valid HCC diagnosis in a given encounter, the provider's documentation must show MEAT: Monitor, Evaluate, Assess, or Treat. A diagnosis from a prior year does not carry forward automatically, it has to be re-documented and supported each calendar year.
- MMonitor: signs, symptoms, disease progression, or lab trending documented in the note
- EEvaluate: test results, medication response, or physical findings reviewed by the provider
- AAssess: explicit mention in the assessment or plan with acknowledgment of status
- TTreat: medication, referral, procedure, therapy, or counseling tied to the diagnosis
Only one of M/E/A/T is required to support the code, but the documentation must be specific enough to show that the provider actually addressed L12.35 during that encounter, not just copy-forwarded from a problem list.
What This Code Means
L12.35 is the ICD-10-CM diagnosis code for other acquired epidermolysis bullosa. A blistering skin disorder acquired later in life (not present from birth) that doesn't fit other specific epidermolysis bullosa categories. L12.35 sits in the ICD-10-CM chapter for diseases of the skin and subcutaneous tissue (l00-l99), within the section covering bullous disorders (l10-l14).
Under the older CMS-HCC V24 model, L12.35 maps to Severe Skin Burn or Condition (HCC 162) with a community, non-dual, aged base RAF weight of 0.517. V28 is the CMS-HCC risk adjustment model that reached 100% phase-in for payment year 2026, replacing V24 which was used during the PY2024–PY2025 transition.
Use this code when the epidermolysis bullosa is acquired but the specific cause or type is not drug-related or otherwise specified. Because L12.35 maps to a payment HCC, the provider's documentation must satisfy MEAT criteria (Monitor, Evaluate, Assess, or Treat) for the encounter to count toward the patient's Medicare Advantage risk adjustment score. When documentation is ambiguous, coders should issue a provider query rather than assume the highest-specificity variant.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for L12.35 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Use this code when the epidermolysis bullosa is acquired but the specific cause or type is not drug-related or otherwise specified
- •Document whether this is autoimmune-mediated or idiopathic in nature
Clinical Significance
Other acquired epidermolysis bullosa encompasses rare variants of this autoimmune skin fragility disorder not elsewhere classified. This diagnosis indicates a serious blistering condition requiring specialized dermatological care and immunosuppressive treatment.
Documentation Requirements
- ✓Clinical presentation with acquired skin fragility
- ✓Onset after birth with documented acquisition
- ✓Characteristic histopathologic findings
- ✓Immunofluorescence and antibody studies
- ✓Specific features distinguishing from typical forms
- ✓Assessment of disease severity and extent
- ✓Treatment approach and response monitoring
- ✓Associated systemic disease evaluation