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2025 ICD-10-CM code S66.324S

Laceration of the extensor muscle, fascia, and/or tendon of the right ring finger at the wrist and hand level, sequela.

Use a secondary code from Chapter 20 (External causes of morbidity) to indicate the cause of the initial injury.Use additional code Z18.- to identify any retained foreign body. Do not use this code for birth trauma (P10-P15) or obstetric trauma (O70-O71).

Medical necessity for the ongoing care related to the sequelae of a laceration should be documented. This could include justification for pain management, physical therapy, surgical intervention to address complications, or other necessary treatment to improve function and quality of life.

Providers diagnose this condition based on patient history, physical examination, and imaging studies (like X-rays) to assess the extent of the injury and rule out foreign bodies. Treatment may involve controlling bleeding, cleaning the wound, surgical repair, medication (pain relievers, antibiotics, tetanus prophylaxis), and dressings.

In simple words: This code describes a long-term condition resulting from a cut or tear to the muscles, tendons, and other tissues on the back of the right ring finger near the wrist and hand.

A laceration of the extensor muscle, fascia, and/or tendon of the right ring finger at the wrist and hand level refers to a deep cut or tear in the fibrous structures around the wrist and hand that help to extend or straighten the finger. This injury is typically caused by blunt or penetrating trauma, such as a cut with a sharp object or assault.This code specifically applies to an encounter for a sequela, meaning it is used to document a condition that is a consequence of a previous injury.

Example 1: A patient presents with chronic stiffness and limited range of motion in their right ring finger following a laceration injury to the extensor tendon near the wrist several months prior. The sequela code S66.324S would be used., A patient who sustained a deep cut to the back of their right ring finger at the wrist level during a work-related accident now experiences persistent pain and reduced finger function, impacting their ability to perform their job duties. S66.324S is appropriate as it reflects the ongoing effects (sequela) of the original injury., A patient was previously treated for a laceration to their right ring finger at the wrist.They now present with recurring infections at the injury site. The code S66.324S would be used to report the sequela (the recurring infections) of the initial laceration.

Documentation should include details of the initial injury, the nature of the sequelae being experienced, and any ongoing treatment or therapy being received. Imaging reports, operative notes, and progress notes detailing the patient's functional limitations and pain assessment are helpful.

** This code describes a sequela, which is a late effect or a condition produced by a previous injury.It is crucial to distinguish between the initial encounter for the laceration and subsequent encounters related to complications or long-term effects.

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