M48.8

Applicable To

• Ossification of posterior longitudinal ligament

Clinical Information

• A calcification of the posterior longitudinal ligament of the spinal column, usually at the level of the cervical spine. It is often associated with anterior ankylosing hyperostosis.

• A disorder characterized by benign depositions of calcium in the posterior longitudinal ligament. Signs and symptoms result from the compression of nerve roots and include motor and sensory disturbances in the lower and upper extremities, and pain in the neck and arms.

Details

• M48.8 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.

• The 2023 edition of ICD-10-CM M48.8 became effective on October 1, 2022.

• This is the American ICD-10-CM version of M48.8 – other international versions of ICD-10 M48.8 may differ.