M67.4
Ganglion
Clinical Classification Guidelines
Inclusion Terms
- Ganglion of joint or tendon (sheath)
Excludes Type 1
- ganglion in yaws (A66.6)
Excludes Type 2
- cyst of bursa (M71.2-M71.3)
- cyst of synovium (M71.2-M71.3)
Medical Intelligence & Overview
A ganglion cyst is a noncancerous lump that often appears near joints or tendons, commonly in the wrists or hands. Also known as synovial cysts, these sacs are filled with a jelly-like fluid and can vary in size. Typically, they develop slowly and may change in size over time. While often harmless, ganglion cysts can sometimes cause discomfort or interfere with movement if they press on nearby nerves or tissues.
Causes & Symptoms
Clinical Causes: Repetitive wrist or hand movements that stress joints and tendons Injury or trauma to a joint or tendon Degenerative joint diseases like osteoarthritis Congenital factors or familial predispositions
Key Symptoms: A visible, round, or oval lump under the skin near a joint or tendon Pain or tenderness around the cyst, especially when moved or pressed Stiffness or limited range of motion in the affected joint A tingling or numb sensation if the cyst presses on nerves Occasional swelling that fluctuates in size
Diagnostic & Treatment
Diagnosis Path: Diagnosis primarily involves clinical examination where a healthcare provider assesses the size, location, and characteristics of the lump. Imaging tests such as ultrasound can provide detailed information about the cyst, confirming fluid-filled nature and ruling out other conditions. In some cases, an MRI may be used for further evaluation. Fine needle aspiration may also be performed to extract fluid for analysis, especially if the diagnosis is uncertain or to reduce the size of the cyst.
Treatment Protocols: Management options for ganglion cysts include watched waiting, as they often resolve on their own, or interventional procedures if they cause discomfort or restrict movement. Treatment methods involve:
Clinical Advice & FAQs
Billing Guidance
Is M67.4 a billable ICD-10 code?
Yes, M67.4 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.
Documentation
How do I report M67.4?
Clinical documentation must specify the nature of Ganglion and any associated comorbidities for accurate reporting.
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