ICD Code M65.311

ICD code M65311 is used to identify the medical condition known as "trigger thumb" specifically affecting the right thumb. Trigger thumb is a condition where the thumb gets stuck in a bent position and may straighten with a snap, similar to a trigger being released. This condition is caused by inflammation or narrowing of the sheath surrounding the tendon in the thumb, leading to pain and restricted movement. The ICD code M65311 helps healthcare providers accurately document and communicate this specific diagnosis for billing, treatment planning, and statistical purposes within the healthcare system.

When to use the ICD code for Trigger Thumb (M65311):

1. Presence of Symptoms:
- Patient reports pain or discomfort in the right thumb.
- Patient experiences a sensation of locking or catching when moving the thumb.

2. Physical Examination Findings:
- Tenderness over the flexor tendon at the base of the thumb.
- Swelling or thickening of the tendon sheath in the affected area.

3. Range of Motion Assessment:
- Limited range of motion in the right thumb, particularly during flexion and extension.
- Difficulty in fully extending the thumb after it has been flexed.

4. Duration of Symptoms:
- Symptoms have persisted for a significant period, typically more than a few weeks.
- Symptoms may worsen with repetitive thumb movements or gripping activities.

5. Impact on Daily Activities:
- Patient reports difficulty performing daily tasks that require thumb use, such as gripping objects or writing.
- Symptoms interfere with occupational or recreational activities.

6. Exclusion of Other Conditions:
- Other potential causes of thumb pain or dysfunction have been ruled out through clinical evaluation.
- No signs of fractures, arthritis, or other inflammatory conditions affecting the thumb.

7. Response to Conservative Treatment:
- Symptoms have not improved with conservative measures such as rest, splinting, or anti-inflammatory medications.

By meeting these diagnostic criteria and observing the associated symptoms, healthcare providers can determine the appropriate use of the ICD code for Trigger Thumb.

For the ICD code M65.311, which pertains to a specific condition, the relevant CPT codes that may be applicable for treatment include:

1. 26055 - Tendon sheath incision (e.g., for trigger finger).

2. 26160 - Excision of lesion of tendon sheath or joint capsule (e.g., cyst, mucous cyst, or ganglion), hand or finger.

3. 20550 - Injection(s); single tendon sheath, or ligament, aponeurosis (e.g., plantar "fascia").

4. 20600 - Arthrocentesis, aspiration and/or injection into a small joint or bursa (e.g., fingers, toes).

These CPT codes are commonly used in the treatment of conditions related to the ICD code M65.311. It is important for healthcare providers to select the appropriate CPT code based on the specific procedure performed and the clinical scenario.

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