A52.1
A52.1 — Symptomatic neurosyphilis
Non-billable headerICD-10-CM
A52.1 is a non-billable header ICD-10-CM code for symptomatic neurosyphilis. It cannot be billed on its own: choose one of the more specific child codes below.
Other codes that can never be billed with A52.1
These codes carry an Excludes1 note pointing at A52.1. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading A52.1 alone.
- M02Postinfective and reactive arthropathies
- M14Arthropathies in other diseases classified elsewhere
- M14.6Charcot's joint
- M49Spondylopathies in diseases classified elsewhere
- M90Osteopathies in diseases classified elsewhere
- R26Abnormalities of gait and mobility
- G01Meningitis in bacterial diseases classified elsewhere
- G21Secondary parkinsonism
Risk adjustment
A52.1 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Code to one of these instead A52.1
9 child codes. Green means billable.
Related codes at this level
Codes that share A52. If A52.1 is not quite right, the correct code is usually one of these.
Questions about A52.1
- Is A52.1 a billable ICD-10-CM code?
- No. A52.1 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does A52.1 sit in the tabular list?
- Certain infectious and parasitic diseases (A00-B99), in the block Infections with a predominantly sexual mode of transmission (A50-A64).