Other biomechanical lesions of thoracic region

This code signifies a biomechanical dysfunction or lesion affecting the thoracic spine, not otherwise specified or classified under more specific M99.x codes. It represents an abnormal mechanical relationship or movement within the thoracic vertebral segments, leading to symptoms such as pain, stiffness, or restricted range of motion. This can include somatic dysfunctions or subluxations without neurological compromise.

Use this code when documentation indicates a thoracic somatic dysfunction, segmental dysfunction, or subluxation complex without myelopathy or radiculopathy. It is appropriate when the physician identifies a biomechanical lesion in the thoracic region that doesn't fit more specific M99.x categories (e.g., M99.02, M99.12). Documentation should clearly state the presence of a thoracic biomechanical lesion or somatic dysfunction.

• Do not use this code if a more specific M99.x code for the thoracic region (e.g., M99.02, M99.12) can be assigned based on documentation.
• Ensure the documentation specifies "thoracic region" to support the use of the "2" in the fifth character.
• This code is often used in conjunction with codes for pain (e.g., M54.6) if pain is a presenting symptom.