- A53.9 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 A53.9 became effective on October 1, 2022.
- This is the American ICD-10-CM version of A53.9 – other international versions of ICD-10 A53.9 may differ.
ICD-10-CM A53.9 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
- Infection due to Treponema pallidum NOS
- Syphilis (acquired) NOS
Type 1 Excludes
- syphilis NOS under two years of age (A50.2)
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 A53.9:
- with signs or symptoms – code by site and stage under Syphilis > VDRL A53.0
- conjugal > Syphilis, syphilitic (acquired) A53.9
- due to blood transfusion > Syphilis, syphilitic (acquired) A53.9
- general > Syphilis, syphilitic (acquired) A53.9
- organic > Syphilis, syphilitic (acquired) A53.9