ICD10BillableValid for clinical use
ICD-10 Code L84: Corns and callosities
Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026
What is this code?
ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Diseases of the skin and subcutaneous tissue (L00-L99).
When is it used?
- May be used when a clinician documents corns and callosities in a patient's medical record.
- May appear in hospital records, claims, referrals, and clinical documentation.
- This code can be used as a clinically usable diagnosis entry in standardized coding workflows.
What it does not mean
- A code alone does not explain severity, treatment plan, or outcome.
- A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
Code hierarchy
chapter
12Diseases of the skin and subcutaneous tissue (L00-L99)
block
L80-L99Other disorders of the skin and subcutaneous tissue
currentL80-L99
Official coding notes
Inclusion terms
- Callus
- Clavus
Where you may see this code
You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.
Related specialists
Dermatologist
Related codes
L80VitiligocodeL81Other disorders of pigmentationcategoryL82Seborrheic keratosiscategoryL83Acanthosis nigricanscodeL85Other epidermal thickeningcategoryL86Keratoderma in diseases classified elsewherecodeL87Transepidermal elimination disorderscategoryL88Pyoderma gangrenosumcodeL89Pressure ulcercategoryL90Atrophic disorders of skincategoryL91Hypertrophic disorders of skincategoryL92Granulomatous disorders of skin and subcutaneous tissuecategory
Sibling codes
L80VitiligobillableL81Other disorders of pigmentationL82Seborrheic keratosisL83Acanthosis nigricansbillableL85Other epidermal thickeningL86Keratoderma in diseases classified elsewherebillableL87Transepidermal elimination disordersL88Pyoderma gangrenosumbillableL89Pressure ulcerL90Atrophic disorders of skinL91Hypertrophic disorders of skinL92Granulomatous disorders of skin and subcutaneous tissueL93Lupus erythematosusL94Other localized connective tissue disordersL95Vasculitis limited to skin, not elsewhere classifiedL97Non-pressure chronic ulcer of lower limb, not elsewhere classifiedL98Other disorders of skin and subcutaneous tissue, not elsewhere classifiedL99Other disorders of skin and subcutaneous tissue in diseases classified elsewherebillable
Coverage-related procedures and services
CPT 11720high
DEBRIDEMENT OF NAIL(S) BY ANY METHOD(S); 1 TO 5
Source: CMS coverage guidance
CPT 11721high
DEBRIDEMENT OF NAIL(S) BY ANY METHOD(S); 6 OR MORE
Source: CMS coverage guidance
CPT 11056high
PARING OR CUTTING OF BENIGN HYPERKERATOTIC LESION (EG, CORN OR CALLUS); 2 TO 4 LESIONS
Source: CMS coverage guidance
CPT 11057high
PARING OR CUTTING OF BENIGN HYPERKERATOTIC LESION (EG, CORN OR CALLUS); MORE THAN 4 LESIONS
Source: CMS coverage guidance
CPT 11055high
PARING OR CUTTING OF BENIGN HYPERKERATOTIC LESION (EG, CORN OR CALLUS); SINGLE LESION
Source: CMS coverage guidance
HCPCS G0127high
TRIMMING OF DYSTROPHIC NAILS, ANY NUMBER
Source: CMS coverage guidance
Mapped diagnoses and classifications
SNOMED_CT 229810006high
Apical callus
Source: SNOMED International ICD-10 map
SNOMED_CT 201040000high
Callosity
Source: SNOMED International ICD-10 map
SNOMED_CT 201042008high
Callosity between toes
Source: SNOMED International ICD-10 map
SNOMED_CT 1367885005high
Callosity caused by device
Source: SNOMED International ICD-10 map
SNOMED_CT 403170002high
Callosity due to biting and/or chewing
Source: SNOMED International ICD-10 map
SNOMED_CT 403169003high
Callosity due to habit tic
Source: SNOMED International ICD-10 map
Coding guidelines
Compatibility
Legacy and official ICD code match exactly.
Legacy codes
L84
Common synonyms
Corns and callosities
Frequently asked questions
About this content
This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.