M40.3 Flatback syndrome

Non-billable header with 4 child codes.

Applies from M40 Kyphosis and lordosis

Excludes1 (never code together)

• congenital kyphosis and lordosis (Q76.4)
• kyphoscoliosis (M41.-)
• postprocedural kyphosis and lordosis (M96.-)

Code first

• underlying disease

Codes under M40.3

• M40.30 Flatback syndrome, site unspecified
• M40.35 Flatback syndrome, thoracolumbar region
• M40.36 Flatback syndrome, lumbar region
• M40.37 Flatback syndrome, lumbosacral region

Code annotations containing back-references to M40.3

Back-references to M40

• Type 2 Excludes: M43.8 Other specified deforming dorsopathies ("kyphosis and lordosis (M40.-)")
• Type 2 Excludes: M95 Other acquired deformities of musculoskeletal system and connective tissue ("deforming dorsopathies (M40-M43)")

Nearby codes

• 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 (this code)
• 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