M40.5

Clinical Information

• A disorder characterized by an abnormal increase in the curvature of the lumbar portion of the spine.

• Abnormally increased curvature of the lumbar portion of the spinal column.

• The anterior concavity in the curvature of the lumbar and cervical spine as viewed from the side. The term usually refers to abnormally increased curvature hollow back, saddle back, swayback). It does not include lordosis as normal mating posture in certain animals = posture + sex behavior, animal).

Details

• M40.5 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 M40.5 became effective on October 1, 2022.

• This is the American ICD-10-CM version of M40.5 – other international versions of ICD-10 M40.5 may differ.