ICD10BillableValid for clinical use
ICD-10 Code L73.2: Hidradenitis suppurativa
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 hidradenitis suppurativa 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
L60-L75Disorders of skin appendages
category
L73Other follicular disorders
currentL73
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 10061high
INCISION AND DRAINAGE OF ABSCESS (EG, CARBUNCLE, SUPPURATIVE HIDRADENITIS, CUTANEOUS OR SUBCUTANEOUS ABSCESS, CYST, FURUNCLE, OR PARONYCHIA); COMPLICATED OR MULTIPLE
Source: CMS coverage guidance
CPT 10060high
INCISION AND DRAINAGE OF ABSCESS (EG, CARBUNCLE, SUPPURATIVE HIDRADENITIS, CUTANEOUS OR SUBCUTANEOUS ABSCESS, CYST, FURUNCLE, OR PARONYCHIA); SIMPLE OR SINGLE
Source: CMS coverage guidance
CPT 10140high
INCISION AND DRAINAGE OF HEMATOMA, SEROMA OR FLUID COLLECTION
Source: CMS coverage guidance
CPT 10081high
INCISION AND DRAINAGE OF PILONIDAL CYST; COMPLICATED
Source: CMS coverage guidance
CPT 10080high
INCISION AND DRAINAGE OF PILONIDAL CYST; SIMPLE
Source: CMS coverage guidance
CPT 10180high
INCISION AND DRAINAGE, COMPLEX, POSTOPERATIVE WOUND INFECTION
Source: CMS coverage guidance
Mapped diagnoses and classifications
SNOMED_CT 402827005high
Anogenital hidradenitis suppurativa
Source: SNOMED International ICD-10 map
SNOMED_CT 402826001high
Axillary hidradenitis suppurativa
Source: SNOMED International ICD-10 map
SNOMED_CT 404176003high
Follicular occlusion tetrad - hidradenitis, acne conglobata, dissecting cellulitis, pilonidal sinus
Source: SNOMED International ICD-10 map
SNOMED_CT 404175004high
Follicular occlusion triad - hidradenitis, acne conglobata, dissecting cellulitis of scalp
Source: SNOMED International ICD-10 map
SNOMED_CT 69741000high
Hidradenitis
Source: SNOMED International ICD-10 map
SNOMED_CT 59393003high
Hidradenitis suppurativa
Source: SNOMED International ICD-10 map
Coding guidelines
Compatibility
Legacy and official ICD code match exactly.
Legacy codes
L73.2
Common synonyms
Hidradenitis suppurativa
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.