2021 ICD-10-CM Diagnosis Code A51

Early syphilis

2016

2017

2018

2019

2020

2021

Non-Billable/Non-Specific Code

A51 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
The 2021 edition of ICD-10-CM A51 became effective on October 1, 2020.
This is the American ICD-10-CM version of A51 - other international versions of ICD-10 A51 may differ.

The following code(s) above A51 contain annotation back-references

Annotation Back-References

In this context, annotation back-references refer to codes that contain:

that may be applicable to A51:

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

ICD-10-CM Codes Adjacent To A51

A50.52 Hutchinson's teeth

A50.53 Hutchinson's triad

A50.54 Late congenital cardiovascular syphilis

A50.55 Late congenital syphilitic arthropathy

A50.56 Late congenital syphilitic osteochondropathy

A50.57 Syphilitic saddle nose

A50.59 Other late congenital syphilis, symptomatic

A50.6 Late congenital syphilis, latent

A50.7 Late congenital syphilis, unspecified

A50.9 Congenital syphilis, unspecified

A51 Early syphilis

A51.0 Primary genital syphilis

A51.1 Primary anal syphilis

A51.2 Primary syphilis of other sites

A51.3 Secondary syphilis of skin and mucous membranes

A51.31 Condyloma latum

A51.32 Syphilitic alopecia

A51.39 Other secondary syphilis of skin

A51.4 Other secondary syphilis

A51.41 Secondary syphilitic meningitis

A51.42 Secondary syphilitic female pelvic disease

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