ICD-10 code for plexus disorder

The ICD-10-CM code for plexus disorder is G54.9 (Nerve root and plexus disorder, unspecified). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on G54.9.

Within G54, choose G54.9 (Nerve root and plexus disorder, unspecified) only when documentation doesn't support a more specific option: brachial plexus disorders (G54.0), lumbosacral plexus disorders (G54.1), cervical root disorders, not elsewhere classified (G54.2), thoracic root disorders, not elsewhere classified (G54.3), lumbosacral root disorders, not elsewhere classified (G54.4), Neuralgic amyotrophy (G54.5), Phantom limb syndrome with pain (G54.6), Phantom limb syndrome without pain (G54.7) and 1 more.

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 073 (Cranial and Peripheral Nerve Disorders with MCC, relative weight 1.5779) and DRG 074 (Cranial and Peripheral Nerve Disorders without MCC, relative weight 1.0173), in MDC 01 (Diseases and Disorders of the Nervous System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.