Senile osteomalacia

This code represents a metabolic bone disease characterized by defective mineralization of newly formed bone matrix in elderly individuals. It results in bone softening, increased fracture risk, and bone pain due to insufficient calcium and phosphate deposition.

Apply this code when documentation explicitly states "senile osteomalacia" or "osteomalacia due to aging." This diagnosis is typically made based on clinical presentation, biochemical markers (e.g., low vitamin D, elevated alkaline phosphatase), and bone biopsy findings.

• Differentiate from osteoporosis (M81.-), which involves reduced bone mass but normal mineralization.
• Ensure documentation specifies "senile" or clearly links the osteomalacia to the aging process.
• Code any associated pathological fractures separately.