Other secondary kyphosis, site unspecified

This code signifies an abnormal, excessive posterior curvature of the thoracic spine (kyphosis) that is not congenital and is not further specified as postural, nutritional, or due to other known causes. It indicates a secondary kyphosis where the underlying etiology is either unknown or not documented.

Use this code when documentation indicates a diagnosis of secondary kyphosis without specifying the anatomical site (e.g., thoracic, lumbar) or the specific cause. This is appropriate when the physician notes "secondary kyphosis, site unspecified" or similar phrasing, and no further details are available.

• Avoid using this code if the specific site of kyphosis (e.g., thoracic, lumbar) is documented; instead, use a more specific code from the M40.1- series.
• Do not use this code for congenital kyphosis (Q76.4) or postural kyphosis (M40.0-).
• Always query the provider for more specific information regarding the site and etiology of the kyphosis if possible, to allow for more precise coding.