A51.49
Other secondary syphilitic conditions
Billable code
This code does not map to a risk-adjusting HCC in the loaded models.
Coding notes
Excludes 1 never coded together · Excludes 2 may co-exist
This code · A51.49
Synonyms
Secondary syphilitic lymphadenopathy Secondary syphilitic myositis
Inherited from A50-A64Infections with a predominantly sexual mode of transmission
Inherited from chapter 1Certain infectious and parasitic diseases
Includes
diseases generally recognized as communicable or transmissible
Excludes 1
certain localized infections - see body system-related chapters
Excludes 2
carrier or suspected carrier of infectious disease (Z22.-) infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-) infectious and parasitic diseases specific to the perinatal period (P35-P39) influenza and other acute respiratory infections (J00-J22)
Use additional
code to identify resistance to antimicrobial drugs (Z16.-)
Official Guidelines for A51.49
FY 2026 ›I.C.1Chapter-specific guidanceChapter 1: Certain Infectious and Parasitic Diseases (A00-B99), U07.1, U09.9
Subsections
- I.C.1.aHuman Immunodeficiency Virus (HIV) Infections
- I.C.1.bInfectious agents as the cause of diseases classified to other chapters
- I.C.1.cInfections resistant to antibiotics
- I.C.1.dSepsis, Severe Sepsis, and Septic Shock Infections resistant to antibiotics
- I.C.1.eMethicillin Resistant Staphylococcus aureus (MRSA) Conditions
- I.C.1.fZika virus infections
- I.C.1.gCoronavirus infections
Find A51.49 in the alphabetic index
15 index paths lead to this code
- Adenopathy › syphilitic
- Lymphadenitis › syphilitic
- Lymphadenopathy › syphilitic
- Syphilis, syphilitic › adenopathy
- Syphilis, syphilitic › lymph gland
- Syphilis, syphilitic › lymphadenitis
- Syphilis, syphilitic › secondary
- Syphilis, syphilitic › secondary › adenopathy
- Syphilis, syphilitic › secondary › lymphadenitis
- Syphilis, syphilitic › secondary › relapse
- Syphilis, syphilitic › secondary › specified form NEC
- Syphilis, syphilitic › secondary › viscera NEC
- Syphilis, syphilitic › viscera › secondary
- Myositis › in › syphilis › secondary
- Syphilis, syphilitic › early › symptomatic › secondary › relapse