ICD10BillableValid for clinical use
ICD-10 Code L40.3: Pustulosis palmaris et plantaris
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 pustulosis palmaris et plantaris 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
L40-L45Papulosquamous disorders
category
L40Psoriasis
currentL40
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
Sibling codes
Coverage-related procedures and services
CPT 82306high
VITAMIN D; 25 HYDROXY, INCLUDES FRACTION(S), IF PERFORMED
Source: CMS coverage guidance
CPT 82652high
VITAMIN D; 1, 25 DIHYDROXY, INCLUDES FRACTION(S), IF PERFORMED
Source: CMS coverage guidance
CPT 11732high
AVULSION OF NAIL PLATE, PARTIAL OR COMPLETE, SIMPLE; EACH ADDITIONAL NAIL PLATE (LIST SEPARATELY IN ADDITION TO CODE FOR PRIMARY PROCEDURE)
Source: CMS coverage guidance
CPT 11730high
AVULSION OF NAIL PLATE, PARTIAL OR COMPLETE, SIMPLE; SINGLE
Source: CMS coverage guidance
CPT 11750high
EXCISION OF NAIL AND NAIL MATRIX, PARTIAL OR COMPLETE (EG, INGROWN OR DEFORMED NAIL), FOR PERMANENT REMOVAL
Source: CMS coverage guidance
CPT 11765high
WEDGE EXCISION OF SKIN OF NAIL FOLD (EG, FOR INGROWN TOENAIL)
Source: CMS coverage guidance
Mapped diagnoses and classifications
SNOMED_CT 239098009high
Acropustulosis of infancy
Source: SNOMED International ICD-10 map
SNOMED_CT 1251421004high
Drug-induced palmoplantar pustular psoriasis
Source: SNOMED International ICD-10 map
SNOMED_CT 200971003high
Psoriasis plantaris
Source: SNOMED International ICD-10 map
SNOMED_CT 3533007high
Pustular bacterid
Source: SNOMED International ICD-10 map
SNOMED_CT 784328000high
Pustular psoriasis of palm of hand
Source: SNOMED International ICD-10 map
SNOMED_CT 27520001high
Pustular psoriasis of palms and soles
Source: SNOMED International ICD-10 map
Coding guidelines
Compatibility
Legacy and official ICD code match exactly.
Legacy codes
L40.3
Common synonyms
Pustulosis palmaris et plantaris
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.