A65

Billable

ChapterA00–B99

Rankcategory

Official Description

Nonvenereal syphilis

Metadata & Insights

•2026 ICD-10-CM Edition - Effective October 1, 2025.
•Billable/specific code (valid for reimbursement).
•Chapter 1: Certain Infectious and Parasitic Diseases (A00-B99).

CH1 Parent Instructions

Includes

diseases generally recognized as communicable or transmissible

Excludes1(Not coded here)

certain localized infections - see body system-related chapters

Excludes2(Not included here)

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

code to identify resistance to antimicrobial drugs (Z16.-)

A65-A69 Parent Instructions

Excludes2(Not included here)

leptospirosis (A27.-)
syphilis (A50-A53)

Instructional Notes

Includes

Bejel
Endemic syphilis
Njovera

Clinical Hierarchy

CH1Certain infectious and parasitic diseases (A00-B99)

A65-A69Other spirochetal diseases (A65-A69)

A65Nonvenereal syphilis

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to A65:

blockA65-A69

Other spirochetal diseases (A65-A69)

View context instructions

chapterCH1

Certain infectious and parasitic diseases (A00-B99)

View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to A65. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

7 raw paths

Bejel1 unique routes

Direct index entry→A65

Dichuchwa1 unique routes

Direct index entry→A65

Njovera1 unique routes

Direct index entry→A65

Siti1 unique routes

Direct index entry→A65

Skerljevo1 unique routes

Direct index entry→A65

Syphilis, syphilitic (acquired)2 unique routes