ICD-9 Diagnosis Code 091.9
Secondary syphilis NOS
Diagnosis Code 091.9
Short Description: Secondary syphilis NOS
Long Description: Unspecified secondary syphilis
This is the 2014 version of the ICD-9-CM diagnosis code 091.9
Code Classification
-
Infectious and parasitic diseases (001–139)
-
Syphilis and other venereal diseases (090-099)
- 091 Early syphilis, symptomatic
-
Syphilis and other venereal diseases (090-099)
Information for Medical Professionals


The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.
- A51.49 - Other secondary syphilitic conditions (approximate)
Approximate Flag
The approximate flag is on, indicating that the relationship between the code in the source system and the code in the target system is an approximate equivalent.
Index of Diseases and Injuries
References found for the code 091.9 in the Index of Diseases and Injuries:
- Syphilis, syphilitic (acquired) 097.9
- primary NEC
NEC "Not elsewhere classifiable"
This abbreviation in the index represents “other specified” when a specific code is not available for a condition the index directs the coder to the “other specified” code in the tabular. 091.2- and secondary (SEE ALSO
See Also
A “see also” instruction following a main term in the index instructs that there is another main term that may also be referenced that may provide additional index entries that may be useful. It is not necessary to follow the “see also” note when the original main term provides the necessary code. Syphilis, secondary) 091.9
- and secondary (SEE ALSO
- secondary (and primary) 091.9
- adenopathy 091.4
- anus 091.3
- bone 091.61
- cardiovascular 093.9
- central nervous system 094.9
- chorioretinitis, choroiditis 091.51
- hepatitis 091.62
- liver 091.62
- lymphadenitis 091.4
- meningitis, acute 091.81
- mouth 091.3
- mucous membranes 091.3
- periosteum 091.61
- periostitis 091.61
- pharynx 091.3
- relapse (treated) (untreated) 091.7
- skin 091.3
- specified form NEC
NEC "Not elsewhere classifiable"
This abbreviation in the index represents “other specified” when a specific code is not available for a condition the index directs the coder to the “other specified” code in the tabular. 091.89
- tonsil 091.3
- ulcer 091.3
- viscera 091.69
- vulva 091.3
- primary NEC
Information for Patients
Syphilis
Syphilis is a sexually transmitted disease caused by bacteria. It infects the genital area, lips, mouth, or anus of both men and women. You usually get syphilis from sexual contact with someone who has it. It can also pass from mother to baby during pregnancy.
The early stage of syphilis usually causes a single, small, painless sore. Sometimes it causes swelling in nearby lymph nodes. If you do not treat it, syphilis usually causes a non-itchy skin rash, often on your hands and feet. Many people do not notice symptoms for years. Symptoms can go away and come back.
The sores caused by syphilis make it easier to get or give someone HIV during sex. If you are pregnant, syphilis can cause birth defects, or you could lose your baby. In rare cases, syphilis causes serious health problems and even death.
Syphilis is easy to cure with antibiotics if you catch it early. Correct usage of latex condoms greatly reduces, but does not completely eliminate, the risk of catching or spreading syphilis.
NIH: National Institute of Allergy and Infectious Diseases
- Condom Fact Sheet in Brief (Centers for Disease Control and Prevention)
- Congenital syphilis
- CSF-VDRL test
- FTA-ABS test
- Neurosyphilis
- RPR test
- Syphilis (Centers for Disease Control and Prevention)
- Syphilis - primary
- Syphilis and MSM (Men Who Have Sex with Men) (Centers for Disease Control and Prevention)
- Syphilitic aseptic meningitis
- Syphilitic myelopathy
- VDRL test
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