ICD-10 code for coccyx acquired angulation

The ICD-10-CM code for coccyx acquired angulation is M43.8X8 (Other specified deforming dorsopathies, sacral and sacrococcygeal region). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on M43.8X8.

Within M43.8X (other specified deforming dorsopathies), M43.8X8 is specifically for other specified deforming dorsopathies, sacral and sacrococcygeal region. Related codes cover occipito-atlanto-axial region (M43.8X1), cervical region (M43.8X2), cervicothoracic region (M43.8X3), thoracic region (M43.8X4), thoracolumbar region (M43.8X5), lumbar region (M43.8X6), lumbosacral region (M43.8X7) and site unspecified (M43.8X9).

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 456 (Spinal Fusion Except Cervical with Spinal Curvature, Malignancy, or Infection with MCC, relative weight 7.6244), DRG 457 (Spinal Fusion Except Cervical with Spinal Curvature, Malignancy, or Infection with CC, relative weight 5.3668), DRG 458 (Spinal Fusion Except Cervical with Spinal Curvature, Malignancy, or Infection without CC/MCC, relative weight 4.0388), 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.