Coding and coverage · ICD-10-CM

A50

A50.0 Early congenital syphilis, symptomatic

Not billable (header)Chapter 1

Report one of the more specific codes below.

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Codes under this one

  • A50.01 Early congenital syphilitic oculopathy
  • A50.02 Early congenital syphilitic osteochondropathy
  • A50.03 Early congenital syphilitic pharyngitis
  • A50.04 Early congenital syphilitic pneumonia
  • A50.05 Early congenital syphilitic rhinitis
  • A50.06 Early cutaneous congenital syphilis
  • A50.07 Early mucocutaneous congenital syphilis
  • A50.08 Early visceral congenital syphilis
  • A50.09 Other early congenital syphilis, symptomatic

Instructional notes

Chapter 1

Excludes2Not included here: the patient may have both; report both when both are present.
  • carrier or suspected carrier of infectious disease (Z22.-)
  • certain localized infections - see body system-related chapters
  • infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
  • infectious and parasitic diseases specific to the perinatal period (P35-P39)
  • influenza and other acute respiratory infections (J00-J22)
Use additional codeAdd a second code for the full picture.
  • code to identify resistance to antimicrobial drugs (Z16.-)
Includes
  • diseases generally recognized as communicable or transmissible

Section A50-A64

Excludes1Not coded here: never report with this code, except when the two conditions are unrelated.
  • nonspecific and nongonococcal urethritis (N34.1)
  • Reiter's disease (M02.3-)
Excludes2Not included here: the patient may have both; report both when both are present.
  • human immunodeficiency virus [HIV] disease (B20)

This code

Inclusion terms
  • Any congenital syphilitic condition specified as early or manifest less than two years after birth.

Chapter 1: Certain infectious and parasitic diseases · A50-A64 Infections with a predominantly sexual mode of transmission (A50-A64)

Source: ICD-10-CM FY 2027 code descriptions and tabular list (CMS and CDC National Center for Health Statistics), effective 2026-10-01 through 2027-09-30 · CMS ICD-10 files. HCC mapping: CMS-HCC V28, payment year 2027. As of 2026-11-04.

Coverage and payment depend on the claim details; confirm with the Medicare Administrative Contractor.