Kyphosis and lordosis (M40)
Clinical Information
Kyphosis - Deformities of the SPINE characterized by an exaggerated convexity of the vertebral column. The forward bending of the thoracic region usually is more than 40 degrees. This deformity sometimes is called round back or hunchback.
Lordosis - 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).
Scheuermann Disease - A type of juvenile osteochondrosis affecting the fibrocartilaginous disc (INTERVERTEBRAL DISC) in the thoracic or thoracolumbar region of the SPINE. It is characterized by a forward concave SPINAL CURVATURE or KYPHOSIS.
Spine - The spinal or vertebral column.
Instructional Notations
Code First
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists, there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation.
- underlying disease
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Diseases of the musculoskeletal system and connective tissue (M00–M99)
Deforming dorsopathies (M40-M43)
M40 Kyphosis and lordosis
M40.0 Postural kyphosis
- M40.00 Postural kyphosis, site unspecified
- M40.03 Postural kyphosis, cervicothoracic region
- M40.04 Postural kyphosis, thoracic region
- M40.05 Postural kyphosis, thoracolumbar region
M40.1 Other secondary kyphosis
- M40.10 Other secondary kyphosis, site unspecified
- M40.12 Other secondary kyphosis, cervical region
- M40.13 Other secondary kyphosis, cervicothoracic region
- M40.14 Other secondary kyphosis, thoracic region
- M40.15 Other secondary kyphosis, thoracolumbar region
M40.2 Other and unspecified kyphosis
M40.20 Unspecified kyphosis
- M40.202 Unspecified kyphosis, cervical region
- M40.203 Unspecified kyphosis, cervicothoracic region
- M40.204 Unspecified kyphosis, thoracic region
- M40.205 Unspecified kyphosis, thoracolumbar region
- M40.209 Unspecified kyphosis, site unspecified
M40.29 Other kyphosis
- M40.292 Other kyphosis, cervical region
- M40.293 Other kyphosis, cervicothoracic region
- M40.294 Other kyphosis, thoracic region
- M40.295 Other kyphosis, thoracolumbar region
- M40.299 Other kyphosis, site unspecified
M40.3 Flatback syndrome
- M40.30 Flatback syndrome, site unspecified
- M40.35 Flatback syndrome, thoracolumbar region
- M40.36 Flatback syndrome, lumbar region
- M40.37 Flatback syndrome, lumbosacral region
M40.4 Postural lordosis
- M40.40 Postural lordosis, site unspecified
- M40.45 Postural lordosis, thoracolumbar region
- M40.46 Postural lordosis, lumbar region
- M40.47 Postural lordosis, lumbosacral region
M40.5 Lordosis, unspecified
- M40.50 Lordosis, unspecified, site unspecified
- M40.55 Lordosis, unspecified, thoracolumbar region
- M40.56 Lordosis, unspecified, lumbar region
- M40.57 Lordosis, unspecified, lumbosacral region
Kyphosis and lordosis (M40)