2,667 codes
Unacceptable principal diagnosis codes
Codes that describe a circumstance influencing health status rather than a current illness, so they are unacceptable as the principal diagnosis for an inpatient stay. Source: Medicare Code Editor (MCE) v44, effective October 1, 2026.
Chapter 13: Diseases of the musculoskeletal system and connective tissue
- M40.10Other secondary kyphosis, site unspecified
- M40.12Other secondary kyphosis, cervical region
- M40.13Other secondary kyphosis, cervicothoracic region
- M40.14Other secondary kyphosis, thoracic region
- M40.15Other secondary kyphosis, thoracolumbar region
- M41.50Other secondary scoliosis, site unspecified
- M41.52Other secondary scoliosis, cervical region
- M41.53Other secondary scoliosis, cervicothoracic region
- M41.54Other secondary scoliosis, thoracic region
- M41.55Other secondary scoliosis, thoracolumbar region
- M41.56Other secondary scoliosis, lumbar region
- M41.57Other secondary scoliosis, lumbosacral region