M42.01 Juvenile osteochondrosis of spine, occipito-atlanto-axial region

Billable ICD-10-CM code, FY2026.

Applies from M42.0 Juvenile osteochondrosis of spine

Applicable to

• Calvé's disease
• Scheuermann's disease

Excludes1 (never code together)

• postural kyphosis (M40.0)

MS-DRG index

Defines the logic of DRG(s) 553-554 in MDC 08.

Approximate ICD-9-CM (GEMs)

• 732.0 Juvenile osteochondrosis of spine (approximate)

Code annotations containing back-references to M42.01

Back-references to M42

• Type 1 Excludes: M40.0 Postural kyphosis ("osteochondrosis of spine (M42.-)")
• Type 2 Excludes: M93 Other osteochondropathies ("osteochondrosis of spine (M42.-)")
• Type 2 Excludes: M95 Other acquired deformities of musculoskeletal system and connective tissue ("deforming dorsopathies (M40-M43)")

Diagnosis Index entries for M42.01

• Osteochondrosis › juvenile, juvenilis › spine › occipito-atlanto-axial region

Nearby codes

• M42 Spinal osteochondrosis
• M42.0 Juvenile osteochondrosis of spine
• M42.00 Juvenile osteochondrosis of spine, site unspecified
• M42.01 Juvenile osteochondrosis of spine, occipito-atlanto-axial region (this code)
• M42.02 Juvenile osteochondrosis of spine, cervical region
• M42.03 Juvenile osteochondrosis of spine, cervicothoracic region
• M42.04 Juvenile osteochondrosis of spine, thoracic region
• M42.05 Juvenile osteochondrosis of spine, thoracolumbar region
• M42.06 Juvenile osteochondrosis of spine, lumbar region