2024 ICD-10-CM Diagnosis Code A50.31

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Late congenital syphilitic interstitial keratitis

  • A50.31 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2024 edition of ICD-10-CM A50.31 became effective on October 1, 2023.
  • This is the American ICD-10-CM version of A50.31 – other international versions of ICD-10 A50.31 may differ.

The following code(s) above A50.31 contain annotation back-references

 that may be applicable to A50.31:

  • A00-B99  Certain infectious and parasitic diseases
  • A50-A64  Infections with a predominantly sexual mode of transmission
  • A50.3  Late congenital syphilitic oculopathy

Approximate Synonyms

  • Congenital syphilitic interstitial keratitis
  • Syphilitic interstitial keratitis

ICD-10-CM A50.31 is grouped within Diagnostic Related Group(s) (MS-DRG v41.0):

  • 124 Other disorders of the eye with mcc or thrombolytic agent
  • 125 Other disorders of the eye without mcc

Convert A50.31 to ICD-9-CMCode 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
  • 2023 (effective 10/1/2022): No change
  • 2024 (effective 10/1/2023): No change

Diagnosis Index entries containing back-references to A50.31: