Shoulder lesions — ICD-10 M75.122
Shoulder lesions
Overview
Shoulder lesions represent a diverse group of injuries affecting the structures of the shoulder joint, including tendons, ligaments, and cartilage. These lesions can result from acute trauma or chronic overuse and may lead to significant functional impairment and pain. The ICD-10 code M75.122 specifically refers to "shoulder lesions, left shoulder," indicating a localized condition that requires targeted assessment and management. Understanding the underlying anatomy, biomechanics, pathophysiology, and treatment options is crucial for effective rehabilitation and recovery.
The shoulder complex consists of several key anatomical structures:
- Glenohumeral Joint: This ball-and-socket joint allows for a wide range of motion, making it one of the most mobile joints in the body.
- Rotator Cuff: Comprising four muscles (supraspinatus, infraspinatus, teres minor, subscapularis), the rotator cuff stabilizes the humeral head within the glenoid cavity during arm movements.
- Labrum: A fibrocartilaginous structure that deepens the glenoid cavity, providing additional stability to the shoulder joint.
- Bursa: Fluid-filled sacs that reduce friction between moving structures in the shoulder.
Biomechanically, the shoulder is designed for mobility but is inherently unstable due to its anatomical configuration. This instability can predispose individuals to injuries such as tears, impingements, or lesions resulting from repetitive overhead activities or acute trauma.
Comman symptoms
The clinical presentation of shoulder lesions varies based on severity:
Mild Lesions
- Symptoms: Mild pain or discomfort during specific activities; minimal impact on daily function.
- Physical Findings: Slight tenderness over the affected area; normal range of motion.
Moderate Lesions
- Symptoms: Persistent pain at rest or with activity; difficulty with overhead movements; possible swelling.
- Physical Findings: Decreased range of motion; positive impingement tests (e.g., Hawkins-Kennedy test).
Severe Lesions
- Symptoms: Severe pain that may radiate down the arm; significant loss of function; potential muscle atrophy.
- Physical Findings: Marked tenderness; limited range of motion; positive special tests indicating rotator cuff tears (e.g., drop arm test).
Red Flag
Clinicians should be vigilant for red flags that may indicate serious underlying conditions:
- Unexplained weight loss or fever
- Severe night pain disrupting sleep
- Significant weakness in arm function
- Symptoms persisting beyond expected recovery timelines
Referral to an orthopedic specialist may be warranted if these red flags are present or if conservative management fails after an adequate trial period.
At a Glance
ICD-10: M75.122 | Category: Soft Tissue Disorders | Billable: Yes
Overview
Shoulder lesions represent a diverse group of injuries affecting the structures of the shoulder joint, including tendons, ligaments, and cartilage. These lesions can result from acute trauma or chronic overuse and may lead to significant functional impairment and pain. The ICD-10 code M75.122 specifically refers to "shoulder lesions, left shoulder," indicating a localized condition that requires targeted assessment and management. Understanding the underlying anatomy, biomechanics, pathophysiology, and treatment options is crucial for effective rehabilitation and recovery.
The shoulder complex consists of several key anatomical structures:
- Glenohumeral Joint: This ball-and-socket joint allows for a wide range of motion, making it one of the most mobile joints in the body.
- Rotator Cuff: Comprising four muscles (supraspinatus, infraspinatus, teres minor, subscapularis), the rotator cuff stabilizes the humeral head within the glenoid cavity during arm movements.
- Labrum: A fibrocartilaginous structure that deepens the glenoid cavity, providing additional stability to the shoulder joint.
- Bursa: Fluid-filled sacs that reduce friction between moving structures in the shoulder.
Biomechanically, the shoulder is designed for mobility but is inherently unstable due to its anatomical configuration. This instability can predispose individuals to injuries such as tears, impingements, or lesions resulting from repetitive overhead activities or acute trauma.
Causes & Risk Factors
Shoulder lesions can arise from various mechanisms:
- Acute Injury: Falls or direct impacts can cause immediate damage to the rotator cuff tendons or labrum.
- Chronic Overuse: Repetitive overhead motions (common in athletes and manual laborers) can lead to microtrauma, inflammation, and eventual degeneration of soft tissues.
Risk Factors
- Age: Degenerative changes are more prevalent in older adults.
- Occupation: Jobs requiring repetitive overhead movements increase risk.
- Sports: Athletes participating in sports like baseball or swimming are particularly susceptible.
- Previous Injuries: A history of shoulder injuries can predispose individuals to further lesions.
Diagnostic Workup
Diagnosis begins with a thorough history and physical examination. Key components include:
History
- Duration and onset of symptoms
- Mechanism of injury (acute vs. chronic)
- Previous shoulder injuries or surgeries
Physical Examination
- Inspection for asymmetry, swelling, or atrophy
- Palpation for tenderness over specific structures (e.g., greater tuberosity)
- Range of motion assessment (active and passive)
- Special tests to assess rotator cuff integrity (e.g., empty can test) and labral integrity (e.g., O'Brien's test)
Imaging Studies
- X-rays: To rule out fractures or dislocations.
- MRI: Provides detailed images of soft tissues, including rotator cuff tears and labral lesions.
Treatment & Rehabilitation
A comprehensive rehabilitation program is crucial for optimal recovery from shoulder lesions. The following four-phase protocol outlines a progressive approach:
Phase 1: Acute Phase (0-2 weeks)
Goals: Reduce pain and inflammation. Interventions:
- Rest and activity modification
- Ice application for 15-20 minutes every few hours
- Gentle range-of-motion exercises within pain limits
Phase 2: Early Rehabilitation Phase (2-6 weeks)
Goals: Restore range of motion and begin strengthening. Interventions:
- Active-assisted range-of-motion exercises (e.g., pendulum swings)
- Isometric strengthening exercises (e.g., shoulder flexion against a wall)
Phase 3: Strengthening Phase (6-12 weeks)
Goals: Improve strength and stability. Interventions:
- Resistance band exercises targeting rotator cuff muscles (e.g., external rotation)
- Scapular stabilization exercises (e.g., scapular retraction)
Phase 4: Functional Phase (12+ weeks)
Goals: Return to sports or daily activities. Interventions:
- Sport-specific training drills
- Plyometric exercises for dynamic stability (e.g., medicine ball throws)
Prevention
Preventing shoulder lesions involves a multifaceted approach that emphasizes ergonomics, lifestyle modifications, and risk management. Evidence-based strategies include:
- Ergonomics: Proper workstation setup is crucial. Ensure that desks and chairs are height-adjusted to promote good posture. When lifting objects, use your legs instead of your back, and avoid repetitive overhead movements.
- Strengthening Exercises: Engage in regular shoulder strengthening and flexibility exercises to enhance stability and reduce injury risk. Incorporate rotator cuff exercises, scapular stabilization, and stretching routines.
- Weight Management: Maintaining a healthy weight can reduce stress on shoulder joints. A balanced diet and regular physical activity can help prevent obesity-related shoulder issues.
- Education and Training: Provide training for individuals in occupations with high shoulder injury risks, such as construction or assembly jobs. Educate workers about proper lifting techniques and the importance of taking breaks to avoid repetitive strain.
- Regular Health Check-ups: Encourage regular check-ups for early identification of shoulder abnormalities or risk factors, especially in individuals with a history of shoulder injuries.
Coding Examples
Patient presents with a 45-year-old male who reports persistent pain in the left shoulder, exacerbated by lifting and overhead activities. Upon examination, the physician notes localized tenderness and limited range of motion. Code as M75.122 because the documentation indicates a lesion of the rotator cuff in the left shoulder, which aligns with the specified criteria for this ICD-10 code.
Audit & Compliance
To support medical necessity and prevent claim denials for code M75.122, the following key documentation elements are required:
- Detailed Clinical History: A thorough history that includes the onset, duration, and characteristics of shoulder pain.
- Physical Examination Findings: Clearly document physical exam findings, including range of motion, tenderness, and functional limitations.
- Diagnostic Imaging Results: If applicable, include results from imaging studies (e.g., MRI) that confirm the presence of a rotator cuff lesion.
- Treatment Plan: A documented treatment plan that outlines conservative management strategies, referrals to physical therapy, or surgical interventions if necessary.
- Follow-up Documentation: Notes from follow-up visits that monitor progress and response to treatment, reinforcing the ongoing nature of the condition.
Clinical Example
Subjective: A 52-year-old female presents with complaints of sharp pain in her right shoulder that worsens with overhead activities and during the night. She reports difficulty reaching for items on a high shelf and occasional shoulder stiffness. Objective: On examination, the right shoulder shows limited range of motion, particularly in abduction and external rotation. There is tenderness noted over the supraspinatus tendon, and a positive Neer test was observed. Assessment: Right shoulder rotator cuff lesion, suspected tear, likely related to chronic overuse. Plan: Schedule an MRI to assess the extent of the lesion. Instruct the patient on physical therapy focusing on shoulder strengthening and range-of-motion exercises. Discuss pain management options including NSAIDs and consider a follow-up visit in four weeks.
Differential Diagnoses
When evaluating shoulder lesions, it is essential to consider differential diagnoses:
- Rotator Cuff Tear (M75.121): Characterized by specific weakness in arm elevation.
- Shoulder Impingement Syndrome (M75.120): Presents with pain during overhead activities without significant weakness.
- Labral Tear (S43.42): Often associated with clicking or locking sensations in the shoulder.
- Frozen Shoulder (Adhesive Capsulitis) (M75.0): Characterized by severe stiffness and limited range of motion without acute pain.
Documentation Best Practices
Accurate documentation is essential for billing purposes under ICD-10 code M75.122:
- Clearly document patient history, including onset, mechanism of injury, and previous treatments.
- Record findings from physical examinations, including specific tests performed and their results.
- Include imaging studies and their interpretations in the documentation.
- Detail the treatment plan, including rehabilitation protocols followed.
Ensure that all documentation aligns with payer guidelines to facilitate proper reimbursement.
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Common causes include acute trauma from falls or sports injuries as well as chronic overuse from repetitive overhead activities.
X-rays are used primarily to rule out fractures, while MRI provides detailed images of soft tissues like tendons and ligaments.
Preventative measures include proper warm-up before activities, strength training for shoulder stability, and avoiding repetitive overhead motions when possible.
Recovery timelines vary; mild lesions may heal within weeks while severe cases could take several months with rehabilitation.
Seek medical attention if you experience severe pain, weakness, swelling, or if symptoms persist beyond typical recovery periods.
