A54.40

HCC Category Mapping

What This Code Means

This code describes a bacterial infection caused by gonorrhea that affects the muscles, bones, joints, or connective tissues, but the specific location is not documented. Gonorrhea is a sexually transmitted infection that can spread beyond the genital area to cause inflammation and infection in the musculoskeletal system.

Coding Tips

• •If the specific site of musculoskeletal involvement is documented (such as knee, shoulder, or spine), use a more specific code from the A54.4- subcategory rather than the unspecified code
• •Verify documentation confirms gonococcal etiology and musculoskeletal involvement; query the provider if the infection site or organism is unclear

Clinical Significance

Gonococcal infection of the musculoskeletal system represents disseminated gonococcal infection, a serious systemic complication of untreated gonorrhea requiring aggressive antibiotic therapy. This unspecified code should prompt a query for more specific site documentation to ensure accurate coding and appropriate risk capture.

Documentation Requirements

• ✓Confirmation of Neisseria gonorrhoeae as the causative organism (culture or NAAT testing)
• ✓Musculoskeletal site involvement documented (even if unspecified, note the clinical presentation)
• ✓Evidence of disseminated gonococcal infection (DGI) versus localized infection
• ✓Treatment regimen documented (typically IV ceftriaxone)
• ✓Response to treatment and any complications

Commonly Confused Codes