M40.00 Postural kyphosis, site unspecified

Billable ICD-10-CM code, FY2026.

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

Applies from M40.0 Postural kyphosis

Excludes1 (never code together)

• osteochondrosis of spine (M42.-)

MS-DRG index

Defines the logic of DRG(s) 456-458 in MDC 08.

Approximate ICD-9-CM (GEMs)

• 737.0 Adolescent postural kyphosis (approximate)
• 737.10 Kyphosis (acquired) (postural) (approximate)

Code annotations containing back-references to M40.00

Back-references to M40.0

• Type 1 Excludes: M42.0 Juvenile osteochondrosis of spine ("postural kyphosis (M40.0)")

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)")

Diagnosis Index entries for M40.00

• Kyphosis, kyphotic (acquired) › postural (adolescent)

Nearby codes

• M40 Kyphosis and lordosis
• M40.0 Postural kyphosis
• M40.00 Postural kyphosis, site unspecified (this code)
• 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