M65.039 Abscess of tendon sheath, unspecified forearm

ICD10CM code

#### Name of the Condition
- Abscess of tendon sheath, unspecified forearm
- Synonyms: Tendon sheath infection, Pyogenic tenosynovitis

#### Summary
Abscess of the tendon sheath in the forearm is a localized infection that causes pus accumulation within the protective covering of the tendons. This condition can lead to pain, swelling, and reduced mobility in the affected area if not promptly treated.

#### Causes
- Bacterial infections, often stemming from trauma or puncture wounds
- Spread of infection from other areas of the body
- Less commonly, it may arise from systemic infections

#### Risk Factors
- Recent injuries or penetrative injuries to the forearm
- Pre-existing medical conditions like diabetes or immune deficiencies
- Poor hand hygiene, especially after sustaining minor injuries

#### Symptoms
- Noticeable swelling and redness around the affected tendon sheath
- Pain or tenderness, especially with movement of the forearm
- Warmth feeling in the affected area
- Possible fever or chills indicating a systemic infection

#### Diagnosis
- Physical examination focusing on tenderness, swelling, and movement limitations
- Blood tests to identify infectious agents
- Imaging studies, such as MRI or ultrasound, to confirm abscess presence

#### Treatment Options
- Antibiotic therapy to address bacterial infection
- Surgical intervention may be necessary to drain the abscess
- Rest and immobilization to prevent further irritation
- Physical therapy to restore mobility post-recovery

#### Prognosis and Follow-Up
- With timely treatment, the prognosis is generally good, with full recovery expected.
- Follow-up appointments are crucial to monitor healing and prevent recurrence.
- Physical therapy may be needed to attain full range of motion.

#### Complications
- If untreated, can lead to chronic pain or scarring
- Potential to spread the infection, leading to cellulitis or septic arthritis
- Permanent movement restriction if severe damage occurs

#### Lifestyle & Prevention
- Maintain good hygiene and promptly address even minor injuries
- Proper and immediate cleaning of wounds to prevent infections
- Protective gear in activities prone to forearm injuries

#### When to Seek Professional Help
- Immediate attention is required for symptoms of severe swelling, increasing pain, fever, or purulent drainage.
- Worsening or persistent symptoms despite initial self-care efforts

#### Additional Resources
- American Academy of Orthopaedic Surgeons (AAOS) - [aaos.org](https://www.aaos.org)
- Centers for Disease Control and Prevention (CDC) - [cdc.gov](https://www.cdc.gov)

#### Tips for Medical Coders
- Ensure to capture additional specificity if available, such as the exact location within the forearm.
- Common errors: Avoid generalizing as tendinitis or tenosynovitis without specifying abscess presence.

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