ICD-10 Code for Neurosyphilis
Also indexed as (arrested) (early) (gumma) (late) (latent) (recurrent) (relapse)
The ICD-10-CM code for neurosyphilis is A52.3 — Neurosyphilis, unspecified. This is the code the Alphabetic Index gives for neurosyphilis with no further qualifier, valid for FY2027 (October 1, 2026 – September 30, 2027).
A52.3 is billable but unspecified. If the documentation names a type, site or cause, one of the more specific codes below is likely expected.
Which neurosyphilis code should you use?
The Alphabetic Index lists 11 codes under Neurosyphilis. Which one applies depends on the qualifier documented in the record — the type, site, cause, or associated condition. Find the qualifier below, then verify the code in the Tabular List before using it.
By type
| with ataxia | A52.19 | Other symptomatic neurosyphilis | |
| aneurysm | A52.05 | Other cerebrovascular syphilis | |
| arachnoid | A52.13 | Late syphilitic meningitis | |
| arteritis | A52.04 | Syphilitic cerebral arteritis | |
| asymptomatic | A52.2 | Asymptomatic neurosyphilis | |
| congenital | A50.40 | Late congenital neurosyphilis, unspecified | |
| dura | A52.13 | Late syphilitic meningitis | |
| general paresis | A52.17 | General paresis | |
| hemorrhagic | A52.05 | Other cerebrovascular syphilis | |
| juvenile | A50.40 | Late congenital neurosyphilis, unspecified | |
| leptomeninges | A52.13 | Late syphilitic meningitis | |
| meningeal, meninges | A52.13 | Late syphilitic meningitis | |
| meningitis | A52.13 | Late syphilitic meningitis | |
| meningovascular | A52.13 | Late syphilitic meningitis | |
| optic atrophy | A52.15 | Late syphilitic neuropathy | |
| parenchymatous | A52.19 | Other symptomatic neurosyphilis | |
| paresis, paretic | A52.17 | General paresis | |
| remission in | A52.3 | Neurosyphilis, unspecified | |
| serological | A52.2 | Asymptomatic neurosyphilis | |
| specified nature or site NEC | A52.19 | Other symptomatic neurosyphilis | |
| tabes, tabetic | A52.11 | Tabes dorsalis | |
| taboparesis | A52.17 | General paresis | |
| thrombosis | A52.05 | Other cerebrovascular syphilis | |
| vascularNEC | A52.05 | Other cerebrovascular syphilis |
Neurosyphilis paresis, paretic
| juvenile | A50.45 | Juvenile general paresis |
Neurosyphilis tabes, tabetic
| juvenile | A50.45 | Juvenile general paresis |
Neurosyphilis taboparesis
| juvenile | A50.45 | Juvenile general paresis |
Index terms and codes are reproduced from the official ICD-10-CM FY2027 release. The Alphabetic Index is a finding aid — a code must always be verified in the Tabular List before it is reported. Data sources