ICD-10-CM Codes
A00-B99 Certain infectious and parasitic diseases
A50-A64 Infections with a predominantly sexual mode of transmission
A50- Congenital syphilis
2022 ICD-10-CM Diagnosis Code A50.40

2022 ICD-10-CM Diagnosis Code A50.40

Late congenital neurosyphilis, unspecified

2016

2017

2018

2019

2020

2021

2022

Billable/Specific Code

A50.40 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
The 2022 edition of ICD-10-CM A50.40 became effective on October 1, 2021.
This is the American ICD-10-CM version of A50.40 - other international versions of ICD-10 A50.40 may differ.

Applicable To

Juvenile neurosyphilis NOS

The following code(s) above A50.40 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 A50.40:

A00-B99
2022 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
2022 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]
Type 1 Excludes
- Hutchinson's triad (A50.53)
Use Additional
- code to identify any associated mental disorder
Late congenital neurosyphilis [juvenile neurosyphilis]

Approximate Synonyms

Late congenital neurosyphilis
Neurosyphilis, juvenile

ICD-10-CM A50.40 is grouped within Diagnostic Related Group(s) (MS-DRG v39.0):

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 A50.40 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
2020 (effective 10/1/2019): No change
2021 (effective 10/1/2020): No change
2022 (effective 10/1/2021): No change

Diagnosis Index entries containing back-references to A50.40:

Neurosyphilis (arrested) (early) (gumma) (late) (latent) (recurrent) (relapse) A52.3
ICD-10-CM Diagnosis Code A52.3
Neurosyphilis, unspecified
Applicable To
Gumma (syphilitic)
Syphilis (late)
Syphiloma
- congenital A50.40
- juvenile A50.40 (asymptomatic) (meningeal)
Syphilis, syphilitic (acquired) A53.9
ICD-10-CM Diagnosis Code A53.9
Syphilis, unspecified
Applicable To
Infection due to Treponema pallidum NOS
Syphilis (acquired) NOS
Type 1 Excludes
syphilis NOS under two years of age (A50.2)
- central nervous system (late) (recurrent) (relapse) (tertiary) A52.3
  ICD-10-CM Diagnosis Code A52.3
  Neurosyphilis, unspecified
  2016 2017 2018 2019 2020 2021 2022 Billable/Specific Code
  Applicable To
  Gumma (syphilitic)
  Syphilis (late)
  Syphiloma
  - congenital A50.40
  - juvenile A50.40

ICD-10-CM Codes Adjacent To A50.40

A50.08 Early visceral congenital syphilis

A50.09 Other early congenital syphilis, symptomatic

A50.1 Early congenital syphilis, latent

A50.2 Early congenital syphilis, unspecified

A50.3 Late congenital syphilitic oculopathy

A50.30 …… unspecified

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

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

2022 ICD-10-CM Diagnosis Code A50.40

Late congenital neurosyphilis, unspecified

Certain infectious and parasitic diseases

Infections with a predominantly sexual mode of transmission

Late congenital neurosyphilis [juvenile neurosyphilis]

Neurosyphilis, unspecified

Syphilis, unspecified

Neurosyphilis, unspecified