ICD-10-CM 2027 diagnosis code
A50.0Early congenital syphilis, symptomatic
A50.0 is a header code, so it can't be reported by itself. Choose one of the 9 more specific codes beneath it.
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About A50.0
A50.0 is the ICD-10-CM diagnosis code for early congenital syphilis, symptomatic. It belongs to category A50 (congenital syphilis), block A50-A64 (infections with a predominantly sexual mode of transmission) and chapter 1 (certain infectious and parasitic diseases). It is a header code, so it can't be reported by itself; one of its 9 subcodes must be used instead.
Within A50 (congenital syphilis), A50.0 is specifically for early congenital syphilis, symptomatic. Related codes cover early congenital syphilis, latent (A50.1), early congenital syphilis, unspecified (A50.2), late congenital syphilitic oculopathy (A50.3), late congenital neurosyphilis [juvenile neurosyphilis] (A50.4), other late congenital syphilis, symptomatic (A50.5), late congenital syphilis, latent (A50.6), late congenital syphilis, unspecified (A50.7) and unspecified (A50.9).
To report this condition, pick the subcode that matches the documentation: A50.01 (oculopathy), A50.02 (osteochondropathy), A50.03 (pharyngitis), A50.04 (pneumonia), A50.05 (rhinitis), A50.06 (syphilis), A50.07 (syphilis), A50.08 (syphilis) and 1 more.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Specific codes under A50.0
- A50.01Early congenital syphilitic oculopathyBillable
- A50.02Early congenital syphilitic osteochondropathyBillable
- A50.03Early congenital syphilitic pharyngitisBillable
- A50.04Early congenital syphilitic pneumoniaBillable
- A50.05Early congenital syphilitic rhinitisBillable
- A50.06Early cutaneous congenital syphilisBillable
- A50.07Early mucocutaneous congenital syphilisBillable
- A50.08Early visceral congenital syphilisBillable
- A50.09Other early congenital syphilis, symptomaticBillable
Coding notes
- Any congenital syphilitic condition specified as early or manifest less than two years after birth.
Notes that apply from higher levels
Instructions written at a parent level also apply to A50.0.
Broader instructions also apply from A50-A64 Infections with a predominantly sexual mode of transmission and Chapter 1: Certain infectious and parasitic diseases.
Codes whose notes reference A50.0
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about A50.0
Is A50.0 billable?
- No. A50.0 is a header code. Report one of its more specific subcodes instead.