ICD-10-CM 2027
ICD-10 code for thoracic region schmorl's disease or nodes
From the official ICD-10-CM alphabetic index entry “Schmorl's disease or nodes › thoracic region”. Page updated September 29, 2026.
About coding thoracic region schmorl's disease or nodes
The ICD-10-CM code for thoracic region schmorl's disease or nodes is M51.44 (Schmorl's nodes, thoracic region).
Within M51.4 (Schmorl's nodes), M51.44 is specifically for Schmorl's nodes, thoracic region. Related codes cover thoracolumbar region (M51.45), lumbar region (M51.46) and lumbosacral region (M51.47).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 551 (Medical Back Problems with MCC, relative weight 1.6358) and DRG 552 (Medical Back Problems without MCC, relative weight 0.9584), in MDC 08 (Diseases and Disorders of the Musculoskeletal System and Connective Tissue), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about thoracic region schmorl's disease or nodes ICD-10 codes
What is the ICD-10 code for thoracic region schmorl's disease or nodes?
- M51.44 — Schmorl's nodes, thoracic region.
Is M51.44 billable?
- Yes. M51.44 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can M51.44 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict M51.44 as a principal diagnosis.
Is M51.44 a CC or MCC?
- No. M51.44 is neither a CC nor an MCC under MS-DRG v44.0.