A51.2
BillablePrimary syphilis of other sites
Primary syphilis of other sites
Coding Notes
Includes
Conditions included under this code
- diseases generally recognized as communicable or transmissible
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
- certain localized infections - see body system-related chapters
- •nonspecific and nongonococcal urethritisN34.1
- •Reiter's diseaseM02.3
Excludes 2
Conditions not included here, but the patient may have both
- •carrier or suspected carrier of infectious diseaseZ22
- •infectious and parasitic diseases complicating pregnancy, childbirth and the puerperiumO98
- •infectious and parasitic diseases specific to the perinatal periodP35-P39
- •influenza and other acute respiratory infectionsJ00-J22
- •human immunodeficiency virus [HIV] diseaseB20
Use Additional Code
Additional codes that should follow this code
Related Codes(6)
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(37)
SNOMED CT
- Primary syphilis of tonsils10345003
- Primary tonsil syphilis10345003
- Primary breast syphilis27460003
- Primary syphilis of breast27460003
- Primary lip syphilis28198007
- Primary syphilis of lip28198007
- Primary finger syphilis54274001
- Primary syphilis of fingers54274001
- Oral syphilis235062007
- Syphilis of breast237446005
- Chancre of nipple237447001
- Primary syphilis of nipple237447001
- Nipple infection237462004
- Primary extragenital syphilis240556008
- Thelitis370501004
- Syphilitic chancre of oral mucous membranes402942007
- Chancre caused by Treponema pallidum736686006
- Syphilitic chancre736686006
Clinical Terms
- Primary syphilis of fingers
- Chancre of nipple
- Primary extragenital syphilis
- Primary syphilis of nipple
- Nipple infection
- Primary finger syphilis
- Syphilitic chancre
- Syphilitic chancre of oral mucous membranes
- Syphilis of breast
- Primary breast syphilis
- Primary syphilis of breast
- Primary tonsil syphilis
- Oral syphilis
- Primary syphilis of lip
- Chancre caused by Treponema pallidum
- Thelitis
- Primary syphilis of tonsils
- Primary lip syphilis
Frequently Asked Questions
What is the ICD-10 code for primary syphilis of other sites?
The ICD-10-CM code for primary syphilis of other sites is A51.2. The full clinical description is "Primary syphilis of other sites". A51.2 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code A51.2 mean?
ICD-10-CM code A51.2 represents “Primary syphilis of other sites”. It is classified under Chapter 1: Certain Infectious and Parasitic Diseases and is a billable/specific code that can be used on a claim.
Is A51.2 a billable code?
Yes, A51.2 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is A51.2 in?
A51.2 is in Chapter 1: Certain Infectious and Parasitic Diseases (codes A00-B99).
What codes cannot be used with A51.2?
A51.2 has Excludes1 notes indicating codes that cannot be used together with it, including: certain localized infections - see body system-related chapters; nonspecific and nongonococcal urethritis (N34.1); Reiter's disease (M02.3-).
Are additional codes required with A51.2?
Yes, when using A51.2, also report: resistance to antimicrobial drugs (Z16.-).
What SNOMED CT codes does A51.2 map to?
A51.2 maps to 12 SNOMED CT concepts: 736686006, 237447001, 237462004, 235062007, 27460003, and 7 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for A51.2?
A51.2 is linked to 1 UMLS Concept Unique Identifier: C0348146. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does A51.2 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like primary syphilis of other sites affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of A51.2?
A51.2 maps to the ICD-11 code: 1A61.2 (Primary syphilis of other sites).
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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.