All ICD10 Codes

A50

Non-Billable
ChapterA00–B99
Rankcategory
Official Description

Congenital syphilis

Use a more specific code (5 billable, 4 non-billable)
A50.0Early congenital syphilis, symptomatichas subcodesA50.1Early congenital syphilis, latentA50.2Early congenital syphilis, unspecifiedA50.3Late congenital syphilitic oculopathyhas subcodesA50.4Late congenital neurosyphilis [juvenile neurosyphilis]has subcodesA50.5Other late congenital syphilis, symptomatichas subcodesA50.6Late congenital syphilis, latentA50.7Late congenital syphilis, unspecifiedA50.9Congenital syphilis, unspecified
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 1: Certain Infectious and Parasitic Diseases (A00-B99).

CH1 Parent Instructions

Includes
  • diseases generally recognized as communicable or transmissible
Excludes1(Not coded here. Use a different code.)
  • certain localized infections - see body system-related chapters
Excludes2(Not included here. Code separately if applicable.)
  • carrier or suspected carrier of infectious disease (Z22.-)
  • 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 Code
  • code to identify resistance to antimicrobial drugs (Z16.-)

A50-A64 Parent Instructions

Excludes1(Not coded here. Use a different code.)
  • nonspecific and nongonococcal urethritis (N34.1)
  • Reiter's disease (M02.3-)
Excludes2(Not included here. Code separately if applicable.)
  • human immunodeficiency virus [HIV] disease (B20)

Clinical Hierarchy

BillableHas subcodes
CH1Certain infectious and parasitic diseases (A00-B99)
A50-A64Infections with a predominantly sexual mode of transmission (A50-A64)
A50Congenital syphilisNot billable
A50.0Early congenital syphilis, symptomaticSubcodes
A50.1Early congenital syphilis, latentBillable
A50.2Early congenital syphilis, unspecifiedBillable
A50.3Late congenital syphilitic oculopathySubcodes
A50.4Late congenital neurosyphilis [juvenile neurosyphilis]Subcodes
A50.5Other late congenital syphilis, symptomaticSubcodes
A50.6Late congenital syphilis, latentBillable
A50.7Late congenital syphilis, unspecifiedBillable
A50.9Congenital syphilis, unspecifiedBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to A50:

blockA50-A64
Infections with a predominantly sexual mode of transmission (A50-A64)
View context instructions
chapterCH1
Certain infectious and parasitic diseases (A00-B99)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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