M46.39
Infection of intervertebral disc (pyogenic), multiple sites in spine
Clinical Classification Guidelines
Medical Intelligence & Overview
An infection of the intervertebral discs, known medically as discitis, is a rare but serious condition where bacteria or other pathogens infect the discs that sit between the bones (vertebrae) of the spine. The specific ICD-10 code M46.39 refers to pyogenic (pus-forming) infections affecting multiple sites within the spine. Such infections can cause significant discomfort and may threaten spinal stability if not diagnosed and treated promptly. Though relatively uncommon, recognizing this condition's signs and understanding its implications are vital for effective management.
Causes & Symptoms
Clinical Causes: Bacterial spread from other parts of the body through the bloodstream (hematogenous spread). Direct invasion of the discs due to trauma or spinal procedures like surgery or injections. Spread from adjacent infected tissues or structures. Weakened immune system, making infections more likely. Chronic infections elsewhere in the body, such as urinary tract infections or skin infections.
Key Symptoms: Severe pain localized to the affected area of the spine, often worsening with movement. Fever and chills, especially in the presence of systemic infection. Sensitivity along the spine when touched or pressed. Weakness, numbness, or tingling in limbs if the infection causes nerve compression. General fatigue and malaise. Reduced mobility due to pain and discomfort.
Diagnostic & Treatment
Diagnosis Path: Blood tests to identify signs of infection, such as elevated white blood cell count and inflammatory markers like ESR and CRP. Imaging studies including MRI scans, which are most effective in visualizing disc spaces and surrounding tissues for signs of infection or abscess formation. Biopsy or microbiological sampling of disc tissue or blood to identify the causative organism. X-rays, which may show disc space narrowing or bone destruction in advanced cases, but are less sensitive in early stages.
Treatment Protocols: Prolonged courses of intravenous antibiotics targeted to the identified organism. Supportive care with pain management, including NSAIDs or pain relievers. Rest and activity modifications to reduce stress on the spine. Surgical intervention in cases of abscess formation, spinal instability, or neurological deficits, to drain pus or stabilize the spine. Close monitoring through imaging and laboratory tests to assess response to treatment.
Clinical Advice & FAQs
Billing Guidance
Is M46.39 a billable ICD-10 code?
Yes, M46.39 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.
Documentation
How do I report M46.39?
Clinical documentation must specify the nature of Infection of intervertebral disc (pyogenic), multiple sites in spine and any associated comorbidities for accurate reporting.
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