2019 ICD-10-CM Diagnosis Code A50.49

Other late congenital neurosyphilis

    2016 2017 2018 2019 Billable/Specific Code
  • A50.49 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2019 edition of ICD-10-CM A50.49 became effective on October 1, 2018.
  • This is the American ICD-10-CM version of A50.49 - other international versions of ICD-10 A50.49 may differ.
Applicable To
  • Juvenile tabes dorsalis
The following code(s) above A50.49 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 A50.49:
  • A00-B99
    2019 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
    2019 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
  • A50.4
    ICD-10-CM Diagnosis Code A50.4

    Late congenital neurosyphilis [juvenile neurosyphilis]

      2016 2017 2018 2019 Non-Billable/Non-Specific Code
    Type 1 Excludes
    Use Additional
    • code to identify any associated mental disorder
    Late congenital neurosyphilis [juvenile neurosyphilis]
Approximate Synonyms
  • Juvenile tabes dorsalis
ICD-10-CM A50.49 is grouped within Diagnostic Related Group(s) (MS-DRG v36.0):
  • 097 Non-bacterial infection of nervous system except viral meningitis with mcc
  • 098 Non-bacterial infection of nervous system except viral meningitis with cc
  • 099 Non-bacterial infection of nervous system except viral meningitis without cc/mcc

Convert A50.49 to ICD-9-CM

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
Code annotations containing back-references to A50.49:
  • Type 1 Excludes: G94
    ICD-10-CM Diagnosis Code G94

    Other disorders of brain in diseases classified elsewhere

      2016 2017 2018 2019 Billable/Specific Code Manifestation Code
    Code First
    • underlying disease
    Type 1 Excludes
    • encephalopathy in congenital syphilis (A50.49)
    • encephalopathy in influenza (J09.X9, J10.81, J11.81)
    • encephalopathy in syphilis (A52.19)
    • hydrocephalus in diseases classified elsewhere (G91.4)

Diagnosis Index entries containing back-references to A50.49:
  • Dementia (degenerative (primary)) (old age) (persisting) F03.90
    ICD-10-CM Diagnosis Code F03.90

    Unspecified dementia without behavioral disturbance

      2016 2017 2018 2019 Billable/Specific Code Adult Dx (15-124 years)
    Applicable To
    • Dementia NOS
    • in (due to)
      • neurosyphilis A52.17
        ICD-10-CM Diagnosis Code A52.17

        General paresis

          2016 2017 2018 2019 Billable/Specific Code
        Applicable To
        • Dementia paralytica
        • juvenile A50.49
          • with behavioral disturbance A50.49
  • Hydrocephalus (acquired) (external) (internal) (malignant) (recurrent) G91.9
    ICD-10-CM Diagnosis Code G91.9

    Hydrocephalus, unspecified

      2016 2017 2018 2019 Billable/Specific Code
    • syphilitic, congenital A50.49
  • Meningoencephalocele - see also Encephalocele
    • syphilitic A52.19
      ICD-10-CM Diagnosis Code A52.19

      Other symptomatic neurosyphilis

        2016 2017 2018 2019 Billable/Specific Code
      Applicable To
      • Syphilitic parkinsonism
      • congenital A50.49
  • Palsy G83.9
    - see also Paralysis
    ICD-10-CM Diagnosis Code G83.9

    Paralytic syndrome, unspecified

      2016 2017 2018 2019 Billable/Specific Code
    • cerebral (congenital) G80.9
      ICD-10-CM Diagnosis Code G80.9

      Cerebral palsy, unspecified

        2016 2017 2018 2019 Billable/Specific Code
      Applicable To
      • Cerebral palsy NOS
      • syphilitic A52.12
        ICD-10-CM Diagnosis Code A52.12

        Other cerebrospinal syphilis

          2016 2017 2018 2019 Billable/Specific Code
        • congenital A50.49
  • Tabes, tabetic A52.10
    ICD-10-CM Diagnosis Code A52.10

    Symptomatic neurosyphilis, unspecified

      2016 2017 2018 2019 Billable/Specific Code
    • dorsalis A52.11
      ICD-10-CM Diagnosis Code A52.11

      Tabes dorsalis

        2016 2017 2018 2019 Billable/Specific Code
      Applicable To
      • Locomotor ataxia (progressive)
      • Tabetic neurosyphilis
      • juvenile A50.49
    • juvenile A50.49

ICD-10-CM Codes Adjacent To A50.49
A50.31 Late congenital syphilitic interstitial keratitis
A50.32 Late congenital syphilitic chorioretinitis
A50.39 Other late congenital syphilitic oculopathy
A50.4 Late congenital neurosyphilis [juvenile neurosyphilis]
A50.40 Late congenital neurosyphilis, unspecified
A50.41 Late congenital syphilitic meningitis
A50.42 Late congenital syphilitic encephalitis
A50.43 Late congenital syphilitic polyneuropathy
A50.44 Late congenital syphilitic optic nerve atrophy
A50.45 Juvenile general paresis
A50.49 Other late congenital neurosyphilis
A50.5 Other late congenital syphilis, symptomatic
A50.51 Clutton's joints
A50.52 Hutchinson's teeth
A50.53 Hutchinson's triad
A50.54 Late congenital cardiovascular syphilis
A50.55 Late congenital syphilitic arthropathy
A50.56 Late congenital syphilitic osteochondropathy
A50.57 Syphilitic saddle nose
A50.59 Other late congenital syphilis, symptomatic
A50.6 Late congenital syphilis, latent

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