ICD-10-CM › A00-B99 › A50-A64 › A50.4 Late congenital neurosyphilis... › A50.49
Other late congenital neurosyphilis
ValidICD-10-CM diagnosis code.
Valid for claims with a date of service in the current code year.
What has happened to this code
Every change the publisher made, from 2007 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.
- FY2007 Added to the draft code set draft Other late congenital neurosyphilis
Official coding rules
Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.
Inherited from the A50-A64 section Infections with a predominantly sexual mode of transmission (A50-A64)
Excludes1 - never coded here
- nonspecific and nongonococcal urethritis (N34.1)
- Reiter's disease (M02.3-)
Excludes2 - not included here
- human immunodeficiency virus [HIV] disease (B20)
How CDC's index refers to this code
Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.
- Palsy > brain
- Macrohydrocephalus
- Water > on > brain
- Dropsy, dropsical > brain
- State > confusional > acute
- State > confusional > subacute
- Disorder > major neurocognitive
- Disorder > neurocognitive > major
- Paralysis, paralytic > congenital
- Syndrome > brain > acute or subacute
- Delirium, delirious > with > dementia
- Reaction > organic, acute or subacute
- Disorder > neurocognitive > major > in
- Paralysis, paralytic > infantile > cerebral
- Paralysis, paralytic > spinal > congenital NEC
- Disorder > neurocognitive > major > in > with > violent behavior
- Paralysis, paralytic > due to intracranial or spinal birth injury
- Disorder > neurocognitive > major > in > with > combative behavior
- Disorder > neurocognitive > major > in > with > aggressive behavior
- Tabes, tabetic > juvenile
- Tabes, tabetic > dorsalis > juvenile
- Hydrocephalus > syphilitic, congenital
- Dementia > in > neurosyphilis > juvenile
- Palsy > cerebral > syphilitic > congenital
- Meningoencephalocele > syphilitic > congenital
- Dementia > in > neurosyphilis > juvenile > with behavioral disturbance
Codes in the same group
| Code | Description | Status |
|---|---|---|
| A50.40 | Late congenital neurosyphilis, unspecified | Valid |
| A50.41 | Late congenital syphilitic meningitis | Valid |
| A50.42 | Late congenital syphilitic encephalitis | Valid |
| A50.43 | Late congenital syphilitic polyneuropathy | Valid |
| A50.44 | Late congenital syphilitic optic nerve atrophy | Valid |
| A50.45 | Juvenile general paresis | Valid |