ICD10BillableValid for clinical use
ICD-10 Code A52.3: Neurosyphilis, unspecified
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 Certain infectious and parasitic diseases (A00-B99).
When is it used?
- May be used when a clinician documents neurosyphilis, unspecified 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
1Certain infectious and parasitic diseases (A00-B99)
block
A50-A64Infections with a predominantly sexual mode of transmission
category
A52Late syphilis
currentA52
Official coding notes
Inclusion terms
- Gumma (syphilitic)
- Syphilis (late)
- Syphiloma
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
Infectious Disease SpecialistGeneral Physician
Related codes
Sibling codes
Coverage-related procedures and services
CPT 11720high
DEBRIDEMENT OF NAIL(S) BY ANY METHOD(S); 1 TO 5
Source: CMS coverage guidance
CPT 11721high
DEBRIDEMENT OF NAIL(S) BY ANY METHOD(S); 6 OR MORE
Source: CMS coverage guidance
HCPCS G0127high
TRIMMING OF DYSTROPHIC NAILS, ANY NUMBER
Source: CMS coverage guidance
CPT 11719high
TRIMMING OF NONDYSTROPHIC NAILS, ANY NUMBER
Source: CMS coverage guidance
CPT 51726high
COMPLEX CYSTOMETROGRAM (IE, CALIBRATED ELECTRONIC EQUIPMENT);
Source: CMS coverage guidance
CPT 51727high
COMPLEX CYSTOMETROGRAM (IE, CALIBRATED ELECTRONIC EQUIPMENT); WITH URETHRAL PRESSURE PROFILE STUDIES (IE, URETHRAL CLOSURE PRESSURE PROFILE), ANY TECHNIQUE
Source: CMS coverage guidance
Mapped diagnoses and classifications
SNOMED_CT 240566000high
Gummatous neurosyphilis
Source: SNOMED International ICD-10 map
SNOMED_CT 266133006high
Late quaternary neurosyphilis
Source: SNOMED International ICD-10 map
SNOMED_CT 26039008high
Neurosyphilis
Source: SNOMED International ICD-10 map
SNOMED_CT 19206003high
Syphilitic acoustic neuritis
Source: SNOMED International ICD-10 map
SNOMED_CT 21523006high
Syphilitic gumma of central nervous system
Source: SNOMED International ICD-10 map
SNOMED_CT 1177060002high
Neurosyphilitic tic disorder
Source: SNOMED International ICD-10 map
Coding guidelines
Compatibility
Legacy and official ICD code match exactly.
Legacy codes
A52.3
Common synonyms
Neurosyphilis, unspecifiedNeurosyphilis
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.