What is the meaning of ICD-10 (International Classification of Diseases, 10th Revision) code M99.12?

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Last updated: February 28, 2025View editorial policy

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From the Research

ICD-10 code M99.12 represents "Subluxation complex (vertebral) of the thoracic region," which is a condition characterized by a partial dislocation or misalignment of the vertebrae in the thoracic spine (middle back) 1. This condition typically results from trauma, poor posture, repetitive strain, or degenerative changes in the spine. Patients with this condition may experience symptoms such as mid-back pain, stiffness, reduced range of motion, and possibly referred pain to other areas. Some key points to consider in the management of this condition include:

  • The importance of accurate diagnosis and coding, as highlighted by the development of the ICD-10-CM External Cause-of-injury Framework for categorizing mechanism and intent of injury 1
  • The need for a comprehensive treatment plan that addresses the underlying causes of the condition, rather than just the symptoms
  • The potential benefits of manual therapy techniques, such as spinal adjustments and mobilization, in restoring proper alignment and function to the thoracic spine
  • The role of pain management strategies, including non-steroidal anti-inflammatory drugs (NSAIDs) and heat or ice therapy, in alleviating symptoms and improving quality of life
  • The importance of postural education and other preventive measures in reducing the risk of progression to chronic issues or compensatory problems in other regions of the spine. Overall, the management of ICD-10 code M99.12 requires a multifaceted approach that takes into account the complex interplay of factors contributing to the condition, and prioritizes the optimization of morbidity, mortality, and quality of life outcomes 2.

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This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

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