A18.4
BillableTuberculosis of skin and subcutaneous tissue
Tuberculosis of skin and subcutaneous tissue
Coding Notes
Inclusion Terms
Alternative clinical terms for this condition
- Erythema induratum, tuberculous
- Lupus exedens
- Lupus vulgaris NOS
- Lupus vulgaris of eyelid
- Scrofuloderma
- Tuberculosis of external ear
Includes
Conditions included under this code
- diseases generally recognized as communicable or transmissible
- infections due to Mycobacterium tuberculosis and Mycobacterium bovis
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
- certain localized infections - see body system-related chapters
- congenital tuberculosis (P37.0)
- nonspecific reaction to test for tuberculosis without active tuberculosis (R76.1-)
- pneumoconiosis associated with tuberculosis, any type in A15 (J65)
- positive PPD (R76.11)
- positive tuberculin skin test without active tuberculosis (R76.11)
- sequelae of tuberculosis (B90.-)
- silicotuberculosis (J65)
Excludes 2
Conditions not included here, but the patient may have both
- carrier or suspected carrier of infectious disease (Z22.-)
- infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
- infectious and parasitic diseases specific to the perinatal period (P35-P39)
- influenza and other acute respiratory infections (J00-J22)
- lupus erythematosus (L93.-)
- systemic lupus erythematosus (M32.-)
Use Additional Code
Additional codes that should follow this code
- code to identify resistance to antimicrobial drugs (Z16.-)
Also Known As / Clinical Terms
SNOMED CT
- Erythema induratum2028007
- Tuberculosis of subcutaneous cellular tissue8250007
- Lichen scrofulosorum9768003
- Tuberculosis cutis lichenoides9768003
- Tuberculosis lichenoides9768003
- LV - Lupus vulgaris10528009
- Lupus exedens10528009
- Lupus vulgaris10528009
- Tuberculosis cutis luposa10528009
- Tuberculosis luposa cutis10528009
- Tuberculosis lupus exedens10528009
- Bazin's disease11354005
- Tuberculosis cutis indurativa11354005
- Tuberculous Bazin's disease11354005
- Tuberculous erythema induratum11354005
- Tuberculoma15202009
- Lobular panniculitis20196005
- Prosector's wart33893009
- Tuberculosis verrucosa cutis33893009
- Verruca necrogenica33893009
- Warty tuberculosis33893009
- Papulonecrotic tuberculid41156006
- Papulonecrotic tuberculide41156006
- Tuberculosis papulonecrotica41156006
- Tuberculous chancre63808004
- Cutaneous tuberculosis66986005
- Tuberculoderma66986005
- Tuberculosis cutis66986005
- Tuberculosis of skin66986005
- Erythema nodosum due to tuberculosis74610006
- Tuberculosis (TB) with erythema nodosum74610006
- Tuberculosis with erythema nodosum AND hypersensitivity reaction74610006
- Tuberculous erythema nodosum74610006
- Scrofuloderma82796002
- Tuberculosis colliquativa82796002
- Tuberculosis colliquativa cutis82796002
- Tuberculid123583002
- Tuberculide123583002
- Tuberculids123583002
- Tuberculosis with cutaneous hypersensitivity reaction123583002
- Infection after vaccination213317006
- Infection following immunisation213317006
- Infection following immunization213317006
- Infection following vaccination213317006
- Papular tuberculide238428001
- Nodular tuberculide238429009
- Cutaneous complication of BCG immunisation238430004
- Cutaneous complication of BCG immunization238430004
- Cutaneous complication of bacillus Calmette-Guerin immunisation238430004
- Cutaneous complication of bacillus Calmette-Guerin immunization238430004
- Acute tuberculous ulcer240380008
- Cutaneous tuberculous gumma240382000
- Metastatic tuberculous ulcer240382000
- Tuberculosis of skin and subcutaneous tissue271423008
- Infection caused by Mycobacterium bovis373437006
- Erythema nodosum caused by Bacteria402968000
- Erythema nodosum due to bacterial infection402968000
- BCG-induced lupus vulgaris402973006
- Bacillus Calmette-Guerin (BCG)-induced lupus vulgaris402973006
- Bacillus Calmette-Guerin-induced lupus vulgaris402973006
- BCG-induced scrofuloderma402974000
- Bacillus Calmette-Guerin (BCG)-induced scrofuloderma402974000
- Bacillus Calmette-Guerin-induced scrofuloderma402974000
- BCG-induced tuberculide402975004
- Bacillus Calmette-Guerin (BCG)-induced tuberculide402975004
- Bacillus Calmette-Guerin-induced tuberculide402975004
- Tuberculous abscess446123007
- Tuberculous abscess of neck447399004
- Lupus vulgaris of nose714394004
- Vaccination site lump863908005
UMLS
- BAZIN DISC0014741
- BAZINS DISC0014741
- Bazin DiseaseC0014741
- Bazin's DiseaseC0014741
- Bazin's diseaseC0014741
- Bazin's syndromeC0014741
- Bazins DiseaseC0014741
- Disease, BazinC0014741
- Disease, Bazin'sC0014741
- Erythema InduratumC0014741
- Erythema induratumC0014741
- Erythema induratum (disorder)C0014741
- Erythema induratum, tuberculousC0014741
- Induration erythemaC0014741
- Tuberculosis Cutis IndurativaC0014741
- Tuberculosis cutis indurativaC0014741
- Tuberculosis cutis indurativa (disorder)C0014741
- Tuberculosis indurativaC0014741
- Tuberculous Bazin's diseaseC0014741
- Tuberculous erythema induratumC0014741
- bazin's diseaseC0014741
- erythema induratumC0014741
- LV - Lupus vulgarisC0024131
- Lupus VulgarisC0024131
- Lupus exedensC0024131
- Lupus vulgarisC0024131
- Lupus vulgaris (disorder)C0024131
- Lupus vulgaris NOSC0024131
- Tuberculosis cutis luposaC0024131
- Tuberculosis luposa cutisC0024131
- Tuberculosis lupus exedensC0024131
- lupusC0024131
- lupus tuberculosisC0024131
- lupus vulgarisC0024131
- Lupus vulgaris of eyelidC2887040
- ScrofulodermaC0275934
- Scrofuloderma (disorder)C0275934
- Tuberculosis colliquativaC0275934
- Tuberculosis colliquativa cutisC0275934
- Tuberculosis of external earC2887041
- Tuberculosis of skin and subcutaneous tissueC0343426
- Tuberculosis of skin and subcutaneous tissue (disorder)C0343426
Frequently Asked Questions
What is ICD-10 code A18.4?
ICD-10-CM code A18.4 represents "Tuberculosis of skin and subcutaneous tissue". It is a billable/specific code that can be used on a claim.
Is A18.4 a billable code?
Yes, A18.4 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is A18.4 in?
A18.4 is in Chapter 1: Certain Infectious and Parasitic Diseases (codes A00-B99).
What codes cannot be used with A18.4?
A18.4 has Excludes1 notes indicating codes that cannot be used together with it, including: certain localized infections - see body system-related chapters; congenital tuberculosis (P37.0); nonspecific reaction to test for tuberculosis without active tuberculosis (R76.1-); and 5 more.
Are additional codes required with A18.4?
Yes, when using A18.4 you should also code: code to identify resistance to antimicrobial drugs (Z16.-).
What SNOMED CT codes does A18.4 map to?
A18.4 maps to 30 SNOMED CT concepts: 240380008, 402973006, 402974000, 402975004, 11354005, and 25 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for A18.4?
A18.4 is linked to 6 UMLS Concept Unique Identifiers: C0014741, C0024131, C2887040, C0275934, C2887041, and 1 more. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.