2021 ICD-10-CM Diagnosis Code A50.0

Early congenital syphilis, symptomatic

    2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
  • A50.0 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2021 edition of ICD-10-CM A50.0 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of A50.0 - other international versions of ICD-10 A50.0 may differ.
Applicable To
  • Any congenital syphilitic condition specified as early or manifest less than two years after birth.
The following code(s) above A50.0 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to A50.0:
  • A00-B99
    2021 ICD-10-CM Range A00-B99

    Certain infectious and parasitic diseases

    Includes
    • diseases generally recognized as communicable or transmissible
    Type 1 Excludes
    • certain localized infections - see body system-related chapters
    Type 2 Excludes
    • 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 to identify resistance to antimicrobial drugs (Z16.-)
    Certain infectious and parasitic diseases
  • A50-A64
    2021 ICD-10-CM Range A50-A64

    Infections with a predominantly sexual mode of transmission

    Type 1 Excludes
    • human immunodeficiency virus [HIV] disease (B20)
    • nonspecific and nongonococcal urethritis (N34.1)
    • Reiter's disease (M02.3-)
    Infections with a predominantly sexual mode of transmission
Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change
Code annotations containing back-references to A50.0:
  • Code First: J99
    , K67
    , D77
    , K77
    , H94.8
    ICD-10-CM Diagnosis Code J99

    Respiratory disorders in diseases classified elsewhere

      2016 2017 2018 2019 2020 2021 Billable/Specific Code Manifestation Code
    Code First
    • underlying disease, such as:
    • amyloidosis (E85.-)
    • ankylosing spondylitis (M45)
    • congenital syphilis (A50.5)
    • cryoglobulinemia (D89.1)
    • early congenital syphilis (A50.0)
    • plasminogen deficiency (E88.02)
    • schistosomiasis (B65.0-B65.9)
    Type 1 Excludes
    ICD-10-CM Diagnosis Code K67

    Disorders of peritoneum in infectious diseases classified elsewhere

      2016 2017 2018 2019 2020 2021 Billable/Specific Code Manifestation Code
    Code First
    • underlying disease, such as:
    • congenital syphilis (A50.0)
    • helminthiasis (B65.0 -B83.9)
    Type 1 Excludes
    • peritonitis in chlamydia (A74.81)
    • peritonitis in diphtheria (A36.89)
    • peritonitis in gonococcal (A54.85)
    • peritonitis in syphilis (late) (A52.74)
    • peritonitis in tuberculosis (A18.31)
    ICD-10-CM Diagnosis Code D77

    Other disorders of blood and blood-forming organs in diseases classified elsewhere

      2016 2017 2018 2019 2020 2021 Billable/Specific Code Manifestation Code
    Code First
    Type 1 Excludes
    • rupture of spleen due to Plasmodium vivax malaria (B51.0)
    • splenitis, splenomegaly in late syphilis (A52.79)
    • splenitis, splenomegaly in tuberculosis (A18.85)
    ICD-10-CM Diagnosis Code K77

    Liver disorders in diseases classified elsewhere

      2016 2017 2018 2019 2020 2021 Billable/Specific Code Manifestation Code
    Code First
    Type 1 Excludes
    • alcoholic hepatitis (K70.1-)
    • alcoholic liver disease (K70.-)
    • cytomegaloviral hepatitis (B25.1)
    • herpesviral [herpes simplex] hepatitis (B00.81)
    • infectious mononucleosis with liver disease (B27.0-B27.9 with .9)
    • mumps hepatitis (B26.81)
    • sarcoidosis with liver disease (D86.89)
    • secondary syphilis with liver disease (A51.45)
    • syphilis (late) with liver disease (A52.74)
    • toxoplasmosis (acquired) hepatitis (B58.1)
    • tuberculosis with liver disease (A18.83)
    ICD-10-CM Diagnosis Code H94.8

    Other specified disorders of ear in diseases classified elsewhere

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Code First
    • underlying disease, such as:
    • congenital syphilis (A50.0)
    Type 1 Excludes
ICD-10-CM Codes Adjacent To A50.0
A49 Bacterial infection of unspecified site
A49.0 Staphylococcal infection, unspecified site
A49.01 Methicillin susceptible Staphylococcus aureus infection, unspecified site
A49.02 Methicillin resistant Staphylococcus aureus infection, unspecified site
A49.1 Streptococcal infection, unspecified site
A49.2 Hemophilus influenzae infection, unspecified site
A49.3 Mycoplasma infection, unspecified site
A49.8 Other bacterial infections of unspecified site
A49.9 Bacterial infection, unspecified
A50 Congenital syphilis
A50.0 Early congenital syphilis, symptomatic
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
A50.1 Early congenital syphilis, latent

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.