Nonvenereal syphilis
In Other spirochetal diseases (A65-A69), chapter 1: Certain Infectious and Parasitic Diseases
- A65 is billable and valid on claims for FY 2027. If the record has more detail, check the other codes under A65-A69 below.
- As a secondary diagnosis it is not a CC or MCC, so it doesn't raise the MS-DRG payment.
- Doesn't count toward a Medicare Advantage risk score (no HCC in V28).
- AHRQ's Chronic Condition Indicator classes it as not chronic (an acute or short-term condition).
Also indexed as: Bejel; Dichuchwa; Njovera; Siti; Skerljevo; Syphilis, endemic; Syphilis, nonvenereal
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Instructional notes
Official coding guidelines
From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.
Rules for coding infections and parasitic diseases, including HIV, organism and drug resistance codes, sepsis and septic shock, MRSA, Zika, and COVID-19.
- Human Immunodeficiency Virus (HIV) Infections (page 19)
- Infectious agents as the cause of diseases classified to other chapters (page 22)
- Infections resistant to antibiotics (page 22)
- Sepsis, Severe Sepsis, and Septic Shock (page 23)
- Methicillin Resistant Staphylococcus aureus (MRSA) Conditions (page 27)
- Zika virus infections (page 28)
- Coronavirus infections (page 28)
Other codes under A65-A69
Other spirochetal diseases (A65-A69)
- A65Nonvenereal syphilis(this code)
- A66Yaws
- A67Pinta [carate]
- A68Relapsing fevers
- A69Other spirochetal infections
A65 MS-DRGs
As the principal diagnosis, A65 groups to MS-DRG 867, 868, or 869 (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.
Related conditions
Grouped by AHRQ's Clinical Classifications Software Refined (CCSR), which sorts every diagnosis code into clinically meaningful categories.
A65 is in Parasitic, other specified and unspecified infections (INF009, its default category), with 254 codes. Others in it:
About the condition
Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.
Bacterial Infections
Bacteria are tiny organisms (living things) that have only one cell. Under a microscope, they look like balls, rods, or spirals. They can be found almost everywhere on Earth. There are lots of bacteria in and on your body. In fact, your body has about 10 times more bacteria cells than human cells.
Read more about bacterial infections on MedlinePlusCode history
Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.
ICD-9-CM equivalent
Legacy crosswalk from the CMS General Equivalence Mappings (last updated 2018).
- 104.0 Nonvenereal endemic syphilis