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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
    A50-A64
    Infections with a predominantly sexual mode of transmission (A50-A64)
    A50
    Congenital syphilis
    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
    A52
    Late syphilis
    A53
    Other and unspecified syphilis
    A54
    Gonococcal infection
    A55
    Chlamydial lymphogranuloma (venereum)
    A56
    Other sexually transmitted chlamydial diseases
    A57
    Chancroid
    A58
    Granuloma inguinale
    A59
    Trichomoniasis
    A60
    Anogenital herpesviral [herpes simplex] infections
    A63
    Other predominantly sexually transmitted diseases, not elsewhere classified
    A64
    Unspecified sexually transmitted disease

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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