Alphabetic Index FY2027

A50.0

Early congenital syphilis, symptomatic

FY2027Chapter 1: Certain infectious and parasitic diseases/A50–A64 Infections with a predominantly sexual mode of transmission

Non-billable headerNot valid on its own. Use one of the more specific codes under it.

A50.0 is a non-billable ICD-10-CM code header for early congenital syphilis, symptomatic. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are A50.01 Early congenital syphilitic oculopathy, A50.02 Early congenital syphilitic osteochondropathy, A50.03 Early congenital syphilitic pharyngitis, A50.04 Early congenital syphilitic pneumonia and 5 more. Its coding notes include a Use additional code instruction, 2 Excludes1 entries and 6 Excludes2 entries.

Use additional code

Add the listed code as a secondary code, if known.

Also from chapter/block level (1 note)
Inherited from Chapter 1 Certain infectious and parasitic diseases
  • code to identify resistance to antimicrobial drugs (Z16.-)

Excludes1

Not coded here. The listed conditions generally should not be reported together.

Also from chapter/block level (2 notes)
Inherited from A50–A64 Infections with a predominantly sexual mode of transmission
  • nonspecific and nongonococcal urethritis (N34.1)
  • Reiter's disease (M02.3-)

Excludes2

Not included here. Both codes may be reported if the patient has both conditions.

Also from chapter/block level (6 notes)
Inherited from A50–A64 Infections with a predominantly sexual mode of transmission
  • human immunodeficiency virus [HIV] disease (B20)
Inherited from Chapter 1 Certain infectious and parasitic diseases
  • 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)

Includes

Further defines or gives examples of the content of the category.

Also from chapter/block level (1 note)
Inherited from Chapter 1 Certain infectious and parasitic diseases
  • diseases generally recognized as communicable or transmissible

Inclusion terms

Conditions classified to this code.

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

More specific codes under A50.0 9