M75.31

Billabel:
Yes
No

Shoulder lesions — ICD-10 M75.31

Shoulder lesions

Overview

Shoulder lesions encompass a variety of conditions affecting the structures of the shoulder joint, including tendons, ligaments, cartilage, and bones. They are classified under ICD-10 code M75.31 and can significantly impact an individual's range of motion, strength, and overall quality of life. Common shoulder lesions include rotator cuff tears, labral tears, and biceps tendon injuries. These conditions often arise from acute trauma or chronic overuse, particularly in athletes and individuals engaged in repetitive overhead activities.

The shoulder joint is a complex structure composed of the humerus, scapula, and clavicle, along with various soft tissues that provide stability and facilitate movement. Key anatomical components include:

  • Rotator Cuff: Comprised of four muscles (supraspinatus, infraspinatus, teres minor, subscapularis) that stabilize the humeral head within the glenoid cavity.
  • Glenoid Labrum: A fibrocartilaginous rim that deepens the socket of the shoulder joint, providing additional stability.
  • Biceps Brachii: The long head of this muscle attaches to the superior labrum and plays a role in shoulder stability and movement.
  • Acromioclavicular Joint: The joint between the acromion process of the scapula and the clavicle.

Biomechanically, the shoulder allows for a wide range of motion, including flexion, extension, abduction, adduction, internal rotation, and external rotation. This extensive mobility makes the shoulder susceptible to injuries from both traumatic events and repetitive strain.

Comman symptoms

The clinical presentation of shoulder lesions varies based on severity:

Mild (Grade I):

  • Symptoms: Mild pain during activities; tenderness localized to the affected area.
  • Functional Impact: Minimal limitations in range of motion; activities of daily living (ADLs) generally unaffected.

Moderate (Grade II):

  • Symptoms: Moderate pain at rest; increased pain during movement; some swelling may be present.
  • Functional Impact: Noticeable limitations in range of motion; difficulty with overhead activities.

Severe (Grade III):

  • Symptoms: Severe pain; possible audible pop or snap at injury; significant swelling and bruising.
  • Functional Impact: Marked limitations in range of motion; inability to perform ADLs without pain.

Red Flag

Clinicians should be vigilant for red flags indicating potential complications or need for referral:

  • Severe pain not relieved by conservative measures
  • Signs of infection (fever, redness, swelling)
  • Neurological symptoms such as numbness or tingling
  • Persistent weakness despite rehabilitation efforts
  • Failure to improve within expected timelines

Referral to an orthopedic specialist may be warranted for surgical evaluation or advanced imaging studies if red flags are present.

At a Glance

ICD-10: M75.31 | Category: Soft Tissue Disorders | Billable: Yes

Overview

Shoulder lesions encompass a variety of conditions affecting the structures of the shoulder joint, including tendons, ligaments, cartilage, and bones. They are classified under ICD-10 code M75.31 and can significantly impact an individual's range of motion, strength, and overall quality of life. Common shoulder lesions include rotator cuff tears, labral tears, and biceps tendon injuries. These conditions often arise from acute trauma or chronic overuse, particularly in athletes and individuals engaged in repetitive overhead activities.

The shoulder joint is a complex structure composed of the humerus, scapula, and clavicle, along with various soft tissues that provide stability and facilitate movement. Key anatomical components include:

  • Rotator Cuff: Comprised of four muscles (supraspinatus, infraspinatus, teres minor, subscapularis) that stabilize the humeral head within the glenoid cavity.
  • Glenoid Labrum: A fibrocartilaginous rim that deepens the socket of the shoulder joint, providing additional stability.
  • Biceps Brachii: The long head of this muscle attaches to the superior labrum and plays a role in shoulder stability and movement.
  • Acromioclavicular Joint: The joint between the acromion process of the scapula and the clavicle.

Biomechanically, the shoulder allows for a wide range of motion, including flexion, extension, abduction, adduction, internal rotation, and external rotation. This extensive mobility makes the shoulder susceptible to injuries from both traumatic events and repetitive strain.

Causes & Risk Factors

Shoulder lesions can develop due to various pathophysiological mechanisms. Acute injuries often result from falls or direct impacts leading to tears or ruptures in soft tissues. Chronic lesions typically arise from repetitive microtrauma associated with overhead activities.

Risk Factors:

  • Age: Degenerative changes in tendons and ligaments increase with age.
  • Activity Level: Athletes involved in sports like swimming, baseball, or tennis are at higher risk.
  • Occupational Hazards: Jobs requiring overhead work can contribute to shoulder injuries.
  • Previous Injuries: A history of shoulder problems may predispose individuals to future lesions.

Diagnostic Workup

A thorough diagnostic workup for shoulder lesions begins with a comprehensive medical history and physical examination. Key components include:

History:

  • Onset of symptoms
  • Mechanism of injury
  • Previous shoulder injuries
  • Activity level

Physical Examination:

  • Inspection: Look for swelling, bruising, or deformity.
  • Palpation: Assess tenderness over specific anatomical structures.
  • Range of Motion Tests: Evaluate active and passive range of motion.
  • Strength Testing: Assess strength in various planes of movement.

Imaging Studies:

  • X-rays: To rule out fractures or dislocations.
  • MRI/Ultrasound: To visualize soft tissue structures like rotator cuff tendons and labrum.

Treatment & Rehabilitation

The treatment plan for shoulder lesions typically follows a structured rehabilitation protocol divided into four phases:

Phase 1: Acute Phase (0–2 Weeks)

  • Goals: Reduce pain and inflammation.
  • Interventions:
  • Rest and activity modification
  • Ice application
  • Non-steroidal anti-inflammatory drugs (NSAIDs) as needed
  • Gentle pendulum exercises

Phase 2: Subacute Phase (2–6 Weeks)

  • Goals: Restore range of motion.
  • Interventions:
  • Continue with ice/heat modalities
  • Begin passive range of motion exercises (e.g., assisted shoulder flexion)
  • Introduce isometric strengthening exercises (e.g., wall push-ups)

Phase 3: Strengthening Phase (6–12 Weeks)

  • Goals: Build strength and endurance.
  • Interventions:
  • Progress to active range of motion exercises (e.g., arm circles)
  • Resistance training using bands or light weights (e.g., external rotation with resistance band)
  • Functional exercises mimicking daily activities

Phase 4: Return to Activity Phase (12+ Weeks)

  • Goals: Return to pre-injury activity levels safely.
  • Interventions:
  • Sport-specific training
  • Advanced strengthening exercises (e.g., overhead presses)
  • Plyometric exercises if indicated

Prevention

Preventing shoulder lesions, specifically those coded under M75.31, involves a multifaceted approach focusing on ergonomics, lifestyle modifications, and proactive risk management. Evidence-based strategies include:

  1. Ergonomics: Ensure proper workstation setup to minimize strain on the shoulder. Utilize ergonomic chairs and desks, and ensure that monitors are at eye level. Encourage frequent breaks during repetitive tasks to reduce stress on shoulder muscles and joints.
  1. Physical Activity: Engage in regular physical activity that includes strength training and flexibility exercises targeting the shoulder girdle. Activities such as swimming and yoga can promote shoulder stability and range of motion.
  1. Posture Awareness: Educate patients on maintaining good posture, especially during prolonged sitting or repetitive overhead activities. Proper alignment can significantly reduce the risk of shoulder lesions.
  1. Weight Management: Encourage a healthy lifestyle to maintain an optimal weight. Excess weight can contribute to musculoskeletal stress, increasing the risk of shoulder injuries.
  1. Risk Management: Identify high-risk activities for shoulder lesions, such as heavy lifting or repetitive overhead motions, and implement protective measures like using supportive devices or modifying work tasks to distribute loads more evenly.

Coding Examples

Patient presents with a 45-year-old female who reports persistent pain in the right shoulder after a fall while gardening. Upon examination, there is tenderness over the rotator cuff and limited range of motion. Code as M75.31 because the documentation supports a diagnosis of shoulder lesion due to an acute injury, which aligns with the guidelines for coding shoulder lesions under ICD-10-CM.

Audit & Compliance

To support medical necessity and prevent claim denials for the M75.31 code, key documentation elements must include:

  1. Detailed Patient History: Document the onset, duration, and characteristics of the shoulder pain, including any precipitating events or prior treatments.
  1. Physical Examination Findings: Clearly describe the examination results, including any range of motion limitations, specific tenderness locations, and functional tests performed.
  1. Diagnostic Imaging: Include results from imaging studies (e.g., X-rays, MRI) that confirm the presence of a shoulder lesion or associated pathology.
  1. Treatment Plan: Outline the conservative management strategies attempted, including physical therapy, medication, or surgical interventions if applicable.
  1. Follow-up Documentation: Document any changes in the patient’s condition during follow-up visits, as well as the effectiveness of the treatment plan.

Clinical Example

Subjective: A 60-year-old male patient presents with complaints of right shoulder pain that has gradually worsened over the past three months. The pain is exacerbated by overhead activities and is associated with intermittent swelling. Objective: Physical examination reveals tenderness to palpation over the greater tuberosity of the humerus, positive impingement signs, and limited abduction of the right shoulder. X-rays show no fractures, but MRI indicates a partial tear of the rotator cuff. Assessment: Right shoulder lesion (M75.31) secondary to rotator cuff tear. Plan: Initiate a conservative treatment plan involving physical therapy focused on strengthening and improving range of motion. Consider corticosteroid injections if symptoms persist. Schedule a follow-up appointment in six weeks to reassess.

Differential Diagnoses

When diagnosing shoulder lesions, it’s essential to differentiate them from other conditions that may present similarly:

  1. Rotator Cuff Tear (M75.121): Involves damage to one or more rotator cuff tendons.
  2. Shoulder Impingement Syndrome (M75.4): Caused by compression of rotator cuff tendons beneath the acromion.
  3. Biceps Tendon Rupture (M66.9): Involves tearing of the biceps tendon at its attachment point.
  4. Labral Tear (M75.32): Damage to the glenoid labrum affecting joint stability.
  5. Adhesive Capsulitis (M75.0): Characterized by stiffness and pain due to inflammation of the shoulder capsule.

Documentation Best Practices

Accurate documentation is crucial for billing purposes under ICD-10 code M75.31:

Key Elements for Documentation:

  1. Detailed patient history including mechanism of injury.
  2. Comprehensive physical examination findings.
  3. Results from imaging studies supporting diagnosis.
  4. Treatment plans including conservative management strategies.

Billing Guidance:


Ensure that all relevant codes are included in claims submissions based on specific findings related to the lesion type (e.g., M75.121 for rotator cuff tears). Utilize modifiers as necessary to indicate whether services were bilateral or if there were multiple procedures performed during a single visit.

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