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B45.3

Billable

Osseous cryptococcosis

HCC Category Mapping

V28HCC 6Opportunistic Infections
0.439
V24HCC 6Opportunistic Infections
0.440
ESRDHCC 6Opportunistic Infections
0.000
RxHCCHCC 5Opportunistic Infections
0.000

What This Code Means

A fungal infection of the bones caused by Cryptococcus, which can cause bone pain and structural damage.

Coding Tips

  • This is a rare manifestation of cryptococcosis; ensure documentation clearly indicates bone/osseous involvement
  • Investigate for disseminated disease and immunocompromised status, as osseous involvement suggests systemic infection

Clinical Significance

Osseous cryptococcosis is a rare manifestation of disseminated Cryptococcus infection involving bone, typically presenting with lytic lesions that can mimic metastatic disease or primary bone tumors. Its presence strongly suggests systemic dissemination and warrants thorough evaluation for central nervous system and pulmonary involvement.

Documentation Requirements

  • Bone biopsy with culture or histopathology confirming Cryptococcus
  • Imaging showing lytic bone lesions (radiograph, CT, or MRI)
  • Specific bone(s) affected documented with laterality
  • Evaluation for disseminated disease documented (serum antigen, lumbar puncture, chest imaging)
  • Immunocompromised status documented

Commonly Confused Codes

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