A50.6
BillableLate congenital syphilis, latent
Late congenital syphilis, latent
Coding Notes
Inclusion Terms
Alternative clinical terms for this condition
- Congenital syphilis without clinical manifestations, with positive serological reaction and negative spinal fluid test, two years or more after birth.
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(8)
A50.0Early congenital syphilis, symptomatic
A50.1Early congenital syphilis, latent
A50.2Early congenital syphilis, unspecified
A50.3Late congenital syphilitic oculopathy
A50.4Late congenital neurosyphilis [juvenile neurosyphilis]
A50.5Other late congenital syphilis, symptomatic
A50.7Late congenital syphilis, unspecified
A50.9Congenital syphilis, unspecified
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(28)
SNOMED CT
- Late congenital syphilis - latent827006
- Late congenital syphilis, latent (+ sero., - C.S.F., 2 years OR more)827006
- Late congenital syphilis, latent (positive serology - cerebrospinal fluid, 2 years OR more)827006
- Latent syphilis (+ sero.)67125004
- Latent syphilis with positive serology67125004
- Juvenile syphilis82323002
- Late congenital syphilis82323002
- Late congenital syphilis (2 years or more)82323002
- Late latent syphilis186903006
- Latent syphilis444150000
UMLS
- Congenital syphilis without clinical manifestations, with positive serological reaction and negative spinal fluid test, two years or more after birth.C0864748
- Late congenital syphilis - latentC0275874
- Late congenital syphilis, latentC0275874
- Late congenital syphilis, latent (+ sero., - C.S.F., 2 years OR more)C0275874
- Late congenital syphilis, latent (positive serology - cerebrospinal fluid, 2 years OR more)C0275874
- Late congenital syphilis, latent (positive serology - cerebrospinal fluid, 2 years OR more) (disorder)C0275874
Clinical Terms
- Late congenital syphilis, latent (+ sero., - C.S.F., 2 years OR more)
- Congenital syphilis without clinical manifestations, with positive serological reaction and negative spinal fluid test, two years or more after birth.
- Late congenital syphilis
- Latent syphilis with positive serology
- Latent syphilis
- Latent syphilis (+ sero.)
- Late congenital syphilis, latent (positive serology - cerebrospinal fluid, 2 years OR more) (disorder)
- Late congenital syphilis, latent (positive serology - cerebrospinal fluid, 2 years OR more)
- Late latent syphilis
- Juvenile syphilis
- Late congenital syphilis (2 years or more)
- Late congenital syphilis - latent
Frequently Asked Questions
What is the ICD-10 code for late congenital syphilis, latent?
The ICD-10-CM code for late congenital syphilis, latent is A50.6. The full clinical description is "Late congenital syphilis, latent". A50.6 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code A50.6 mean?
ICD-10-CM code A50.6 represents “Late congenital syphilis, latent”. 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 A50.6 a billable code?
Yes, A50.6 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is A50.6 in?
A50.6 is in Chapter 1: Certain Infectious and Parasitic Diseases (codes A00-B99).
What codes cannot be used with A50.6?
A50.6 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 A50.6?
Yes, when using A50.6, also report: resistance to antimicrobial drugs (Z16.-).
What SNOMED CT codes does A50.6 map to?
A50.6 maps to 5 SNOMED CT concepts: 82323002, 827006, 186903006, 444150000, 67125004. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for A50.6?
A50.6 is linked to 2 UMLS Concept Unique Identifiers: C0864748, C0275874. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does A50.6 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like late congenital syphilis, latent 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 A50.6?
A50.6 maps to the ICD-11 code: 1A60.5 (Late congenital syphilis, latent).
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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.