A52.9
BillableLate syphilis, unspecified
Late syphilis, unspecified
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(51)
SNOMED CT
- Late syphilis72083004
- Late tertiary syphilis72083004
- Tertiary syphilis72083004
- Cold Donath Landsteiner type autoimmune haemolytic anaemia127057004
- Cold Donath Landsteiner type autoimmune hemolytic anemia127057004
- Cold agglutinin haemoglobinuria127057004
- Cold agglutinin hemoglobinuria127057004
- Cold hemoglobinuria127057004
- PCH - Paroxysmal cold haemoglobinuria127057004
- PCH - Paroxysmal cold hemoglobinuria127057004
- Paroxysmal cold haemoglobinuria127057004
- Paroxysmal cold hemoglobinuria127057004
- Paroxysmal cold haemoglobinuria associated with tertiary syphilis127058009
- Paroxysmal cold hemoglobinuria associated with tertiary syphilis127058009
- Late quaternary syphilis278481001
- Quaternary syphilis278481001
- Late secondary syphilis402947001
UMLS
- Late syphilisC0153188
- Late syphilis (disorder)C0153188
- Late syphilis, unspecifiedC0153188
- Late tertiary syphilisC0153188
- Syphilis (late)C0153188
- Syphilis, tertiaryC0153188
- Tertiary SyphilisC0153188
- Tertiary Treponema pallidum infectionC0153188
- Tertiary syphilisC0153188
- late syphilisC0153188
- late tertiary syphilisC0153188
- syphilis tertiaryC0153188
- tertiary syphilisC0153188
Clinical Terms
- syphilis tertiary
- Tertiary syphilis
- Syphilis (late)
- Paroxysmal cold hemoglobinuria associated with tertiary syphilis
- Cold agglutinin hemoglobinuria
- Late syphilis (disorder)
- Paroxysmal cold hemoglobinuria
- Cold Donath Landsteiner type autoimmune hemolytic anemia
- Late tertiary syphilis
- Quaternary syphilis
- Tertiary Treponema pallidum infection
- Cold hemoglobinuria
- PCH - Paroxysmal cold haemoglobinuria
- Paroxysmal cold haemoglobinuria associated with tertiary syphilis
- Syphilis, tertiary
- Cold Donath Landsteiner type autoimmune haemolytic anaemia
- Late secondary syphilis
- Cold agglutinin haemoglobinuria
- PCH - Paroxysmal cold hemoglobinuria
- Paroxysmal cold haemoglobinuria
- Late quaternary syphilis
Frequently Asked Questions
What is the ICD-10 code for late syphilis, unspecified?
The ICD-10-CM code for late syphilis, unspecified is A52.9. The full clinical description is "Late syphilis, unspecified". A52.9 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code A52.9 mean?
ICD-10-CM code A52.9 represents “Late syphilis, unspecified”. 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 A52.9 a billable code?
Yes, A52.9 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is A52.9 in?
A52.9 is in Chapter 1: Certain Infectious and Parasitic Diseases (codes A00-B99).
What codes cannot be used with A52.9?
A52.9 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 A52.9?
Yes, when using A52.9, also report: resistance to antimicrobial drugs (Z16.-).
What SNOMED CT codes does A52.9 map to?
A52.9 maps to 5 SNOMED CT concepts: 127057004, 278481001, 402947001, 72083004, 127058009. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for A52.9?
A52.9 is linked to 1 UMLS Concept Unique Identifier: C0153188. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does A52.9 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like late syphilis, unspecified 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 A52.9?
A52.9 maps to the ICD-11 code: 1A62.Z (Late syphilis, unspecified).
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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.