A56.1

Chlamydial infection of pelviperitoneum and other genitourinary organs

Header / non-billable

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Coding notes

Excludes 1 never coded together · Excludes 2 may co-exist

Inherited from A56Other sexually transmitted chlamydial diseases
Includes

sexually transmitted diseases due to Chlamydia trachomatis

Excludes 1

neonatal chlamydial conjunctivitis (P39.1) neonatal chlamydial pneumonia (P23.1)

Excludes 2

chlamydial lymphogranuloma (A55) conditions classified to A74.-

Inherited from A50-A64Infections with a predominantly sexual mode of transmission
Excludes 1

nonspecific and nongonococcal urethritis (N34.1) Reiter's disease (M02.3-)

Excludes 2

human immunodeficiency virus [HIV] disease (B20)

Inherited from chapter 1Certain infectious and parasitic diseases
Includes

diseases generally recognized as communicable or transmissible

Excludes 1

certain localized infections - see body system-related chapters

Excludes 2

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 to identify resistance to antimicrobial drugs (Z16.-)

Official Guidelines for A56.1

FY 2026 ›