1. ICD-10-CM Codes
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2. A00-B99 Certain infectious and parasitic diseases
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3. A50-A64 Infections with a predominantly sexual mode of transmission
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4. A50- Congenital syphilis
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5. 2021 ICD-10-CM Diagnosis Code A50.02

2021 ICD-10-CM Diagnosis Code A50.02

Early congenital syphilitic osteochondropathy

2016 2017 2018 2019 2020 2021 Billable/Specific Code

• A50.02 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
• The 2021 edition of ICD-10-CM A50.02 became effective on October 1, 2020.
• This is the American ICD-10-CM version of A50.02 - other international versions of ICD-10 A50.02 may differ.

• 867 Other infectious and parasitic diseases diagnoses with mcc
• 868 Other infectious and parasitic diseases diagnoses with cc
• 869 Other infectious and parasitic diseases diagnoses without cc/mcc

Convert A50.02 to ICD-9-CM

• 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

• Caries
  • syphilitic A52.77
    ICD-10-CM Diagnosis Code A52.77

    Syphilis of bone and joint

    2016 2017 2018 2019 2020 2021 Billable/Specific Code
    • congenital A50.02 (early)
• Disease, diseased - see also Syndrome
  • Parrot's A50.02 (syphilitic osteochondritis)
  • Wegner's A50.02 (syphilitic osteochondritis)
• Epiphysitis - see also Osteochondropathy
  • syphilitic A50.02 (congenital)
• Osteochondritis - see also Osteochondropathy, by site
  • syphilitic (congenital) (early) A50.02
    • ankle A50.02
    • elbow A50.02
    • foot A50.02
    • forearm A50.02
    • hand A50.02
    • hip A50.02
    • knee A50.02
    • multiple sites A50.02
    • shoulder joint A50.02
    • specified site NEC A50.02
• Osteochondropathy M93.90
  ICD-10-CM Diagnosis Code M93.90

  Osteochondropathy, unspecified of unspecified site

  2016 2017 2018 2019 2020 2021 Billable/Specific Code
  • syphilitic, congenital
    • early A50.02
• Osteochondrosis - see also Osteochondropathy, by site
  • syphilitic A50.02 (congenital)
• Osteomyelitis (general) (infective) (localized) (neonatal) (purulent) (septic) (staphylococcal) (streptococcal) (suppurative) (with periostitis) M86.9
  ICD-10-CM Diagnosis Code M86.9

  Osteomyelitis, unspecified

  2016 2017 2018 2019 2020 2021 Billable/Specific Code

  Applicable To

  • Infection of bone NOS
  • Periostitis without osteomyelitis
  • syphilitic A52.77
    ICD-10-CM Diagnosis Code A52.77

    Syphilis of bone and joint

    2016 2017 2018 2019 2020 2021 Billable/Specific Code
    • congenital A50.02 (early)
• Oxycephaly, oxycephalic Q75.0
  ICD-10-CM Diagnosis Code Q75.0

  Craniosynostosis

  2016 2017 2018 2019 2020 2021 Billable/Specific Code POA Exempt

  Applicable To

  • Acrocephaly
  • Imperfect fusion of skull
  • Oxycephaly
  • Trigonocephaly
  • syphilitic, congenital A50.02
• Parrot's disease A50.02 (early congenital syphilitic pseudoparalysis)
• Periostitis (albuminosa) (circumscribed) (diffuse) (infective) (monomelic) - see also Osteomyelitis
  • syphilitic A52.77
    ICD-10-CM Diagnosis Code A52.77

    Syphilis of bone and joint

    2016 2017 2018 2019 2020 2021 Billable/Specific Code
    • congenital A50.02 (early)
• Synovitis M65.9
  - see also Tenosynovitis
  ICD-10-CM Diagnosis Code M65.9

  Synovitis and tenosynovitis, unspecified

  2016 2017 2018 2019 2020 2021 Billable/Specific Code
  • syphilitic A52.78
    ICD-10-CM Diagnosis Code A52.78

    Syphilis of other musculoskeletal tissue

    2016 2017 2018 2019 2020 2021 Billable/Specific Code

    Applicable To

    • Late syphilitic bursitis
    • Syphilis [stage unspecified] of bursa
    • Syphilis [stage unspecified] of muscle
    • Syphilis [stage unspecified] of synovium
    • Syphilis [stage unspecified] of tendon
    • congenital A50.02 (early)
• Syphilis, syphilitic (acquired) A53.9
  ICD-10-CM Diagnosis Code A53.9

  Syphilis, unspecified

  2016 2017 2018 2019 2020 2021 Billable/Specific Code

  Applicable To

  • Infection due to Treponema pallidum NOS
  • Syphilis (acquired) NOS

  Type 1 Excludes

  • syphilis NOS under two years of age (A50.2)
  • congenital A50.9
    ICD-10-CM Diagnosis Code A50.9

    Congenital syphilis, unspecified

    2016 2017 2018 2019 2020 2021 Billable/Specific Code
    • early, or less than 2 years after birth NEC A50.2
      ICD-10-CM Diagnosis Code A50.2

      Early congenital syphilis, unspecified

      2016 2017 2018 2019 2020 2021 Billable/Specific Code

      Applicable To

      • Congenital syphilis NOS less than two years after birth.
      • symptomatic A50.09
        ICD-10-CM Diagnosis Code A50.09

        Other early congenital syphilis, symptomatic

        2016 2017 2018 2019 2020 2021 Billable/Specific Code
        • osteochondropathy A50.02
  • periosteum (late) A52.77
    ICD-10-CM Diagnosis Code A52.77

    Syphilis of bone and joint

    2016 2017 2018 2019 2020 2021 Billable/Specific Code
    • congenital A50.02 (early)
  • epiphysitis A50.02 (congenital) (early)
  • osteochondritis A50.02 (congenital) (early)
• Wegner's disease A50.02

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