- A51.49 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 A51.49 became effective on October 1, 2022.
- This is the American ICD-10-CM version of A51.49 – other international versions of ICD-10 A51.49 may differ.
ICD-10-CM A51.49 is grouped within Diagnostic Related Group(s):
- 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
Applicable To
- Secondary syphilitic lymphadenopathy
- Secondary syphilitic myositis
Code History
- 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
- 2016 (effective 10/1/2015): No change
- 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
- 2024 (effective 10/1/2022): No change
Diagnosis Index entries containing back-references to A51.49:
- syphilitic (secondary) > Adenopathy (lymph gland) R59.9
- syphilitic (early) (secondary) > Lymphadenitis I88.9
- syphilitic (early) (secondary) > Lymphadenopathy (generalized) R59.1
- secondary > syphilis A52.78
- adenopathy (secondary) > Syphilis, syphilitic (acquired) A53.9
- relapse (treated, untreated) > secondary A51.39
- lymph gland (early) (secondary) > Syphilis, syphilitic (acquired) A53.9
- lymphadenitis (secondary) > Syphilis, syphilitic (acquired) A53.9
- secondary (and primary) > Syphilis, syphilitic (acquired) A53.9
- adenopathy > secondary (and primary) A51.49
- lymphadenitis > secondary (and primary) A51.49
- relapse (treated, untreated) > secondary (and primary) A51.49
- specified form NEC > secondary (and primary) A51.49
- viscera NEC > secondary (and primary) A51.49
- secondary > viscera (abdominal) (late) A52.74