M89.121
Complete physeal arrest, right proximal humerus
Clinical Classification Guidelines
Medical Intelligence & Overview
Complete physeal arrest of the right proximal humerus is a medical condition where the growth plate (also called the physis) in the upper arm bone near the shoulder stops growing prematurely or permanently. This condition can result from injury or other factors that damage the growth plate. The proximal humerus is the upper part of the arm bone that connects to the shoulder, and when the growth plate here is affected, it can impact the growth and development of the shoulder and upper arm.
Causes & Symptoms
Clinical Causes: Trauma or injury to the shoulder, such as fractures or dislocations that involve the growth plate. Infections affecting the bone or growth plate area. Radiation therapy or chemotherapy treatments that damage bone tissue. Underlying bone diseases or genetic conditions that affect bone growth. Repeated stress or overuse injuries involving the shoulder. Certain congenital abnormalities present from birth that impair growth plate function.
Key Symptoms: Decreased or halted growth in the affected arm compared to the opposite side. deformity or abnormal shape in the shoulder or upper arm. Limited range of motion or reduced flexibility when moving the shoulder. Pain or discomfort in the shoulder area—although sometimes the condition is asymptomatic. Weakness in the affected arm or shoulder. Visible deformity or asymmetry between the two arms in older children or adults.
Diagnostic & Treatment
Diagnosis Path: X-ray imaging to visualize the growth plate and assess the extent of arrest. MRI scans if soft tissue or cartilage involvement needs evaluation. Assessing growth patterns and comparing the affected arm with the unaffected side. Monitoring over time to determine progression or stability of the condition.
Treatment Protocols: Observation and regular follow-up, especially if growth and function are minimally affected. Surgical procedures to correct deformity or restore alignment, such as osteotomy (cutting and realigning the bone). Limb lengthening or shortening surgeries may be considered in severe cases. Shoulder reconstruction or joint replacement might be options for adults with significant joint deformity or loss of function. Physical therapy to improve mobility and strengthen surrounding muscles. Pain management strategies when necessary.
Clinical Advice & FAQs
Billing Guidance
Is M89.121 a billable ICD-10 code?
Yes, M89.121 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.
Documentation
How do I report M89.121?
Clinical documentation must specify the nature of Complete physeal arrest, right proximal humerus and any associated comorbidities for accurate reporting.
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