M87.850
BillableOther osteonecrosis, pelvis
HCC Category Mapping
V28HCC 92 — Bone/Joint/Muscle Infections/Necrosis
0.209V24HCC 39 — Bone/Joint/Muscle Infections/Necrosis
0.482ESRDHCC 39 — Bone/Joint/Muscle Infections/Necrosis
0.000RxHCCHCC 80 — Bone/Joint/Muscle Infections/Necrosis
0.000What This Code Means
Death of bone tissue in the pelvis due to loss of blood supply, affecting the hip bone structure.
Coding Tips
- •Pelvic osteonecrosis is less common; ensure documentation clearly indicates pelvic involvement rather than femoral head
- •Consider associated conditions like sickle cell disease or prolonged corticosteroid use
Clinical Significance
Osteonecrosis of the pelvis represents a serious condition affecting the hip bones and potentially compromising weight-bearing function and mobility. This diagnosis has significant risk adjustment implications due to the complex care requirements, potential need for major surgical intervention, and impact on ambulation and quality of life.
Documentation Requirements
- ✓Specific identification of pelvic bone involvement in osteonecrosis
- ✓Documentation of causes other than idiopathic or drug-induced osteonecrosis
- ✓Advanced imaging (MRI, CT, bone scan) confirming pelvic bone necrosis
- ✓Clinical presentation including pelvic pain, hip dysfunction, and mobility limitations
- ✓Exclusion of infectious or traumatic causes as primary etiology
- ✓Assessment of impact on weight-bearing capacity and ambulation
- ✓Documentation of any underlying conditions or risk factors
- ✓Provider evaluation of treatment complexity and surgical considerations
Commonly Confused Codes
M87.050 — Idiopathic aseptic necrosis of pelvis - specifically idiopathic etiologyM87.00 — Idiopathic aseptic necrosis of unspecified bone - lacks specificity to pelvisM86.850 — Other osteomyelitis, pelvis - infectious bone disease rather than necrosisS32.9XXA — Fracture of unspecified parts of pelvis - acute trauma rather than chronic necrosisM25.55 — Pain in hip - symptom rather than specific bone pathology
Code Hierarchy
└M87Osteonecrosis└M87.8Other osteonecrosis└M87.85Other osteonecrosis, pelvis and femur└M87.850Other osteonecrosis, pelvis
└M87.850Other osteonecrosis, pelvis