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A512026

Non-billable

Early syphilis

Clinical Notes

    From A50-A64
    • Nonspecific and nongonococcal urethritis (N34.1)
    • Reiter's disease (M02.3-)
    From A00-B99
    • Certain localized infections - see body system-related chapters

    Frequently Asked Questions

    Code Hierarchy
    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
    A51.4
    Other secondary syphilis
    A51.5
    ...syphilis, latent
    A51.9
    ...syphilis, unspecified

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    Related MS-DRGs
    174,355 Medicare hospitalizations across 5 DRGs for codes in A51

    Top DRGs associated with codes in this category:

    394OTHER DIGESTIVE SYSTEM DIAGNOSES WITH CC30,250
    393OTHER DIGESTIVE SYSTEM DIAGNOSES WITH MCC24,394
    441DISORDERS OF LIVER EXCEPT MALIGNANCY, CIRRHOSIS OR ALCOHOLIC HEPATITIS WITH MCC16,594
    867OTHER INFECTIOUS AND PARASITIC DISEASES DIAGNOSES WITH MCC14,430
    023CRANIOTOMY WITH MAJOR DEVICE IMPLANT OR ACUTE COMPLEX CNS PRINCIPAL DIAGNOSIS WITH MCC O12,753
    Official Guidelines
    Chapter 1: Infectious and Parasitic Diseases

    Official coding guidelines for A00-B99

    Early syphilis - ICD-10-CM Code A51 2026 | FindICD10