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ICD-10-CM 2027

ICD-10 code for thoracic outlet compression syndrome

G54.0

Brachial plexus disorders

✓ Billable / specific

From the official ICD-10-CM alphabetic index entry “Syndrome › thoracic outlet (compression)”. Page updated September 29, 2026.

About coding thoracic outlet compression syndrome

The ICD-10-CM code for thoracic outlet compression syndrome is G54.0 (Brachial plexus disorders). The official index lists 3 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on G54.0.

Within G54 (nerve root and plexus disorders), G54.0 is specifically for brachial plexus disorders. Related codes cover 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), other nerve root and plexus disorders (G54.8) 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.

More specific thoracic outlet compression syndrome codes (official index)

  • arterial I77.89 — Other specified disorders of arteries and arterioles
  • neurogenic G54.0 — Brachial plexus disorders
  • venous I87.1 — Compression of vein

Common questions about thoracic outlet compression syndrome ICD-10 codes

What is the ICD-10 code for thoracic outlet compression syndrome?

G54.0 — Brachial plexus disorders. More specific codes apply when the documentation supports them: I77.89, G54.0, I87.1.

What is the ICD-10 code for arterial thoracic outlet compression syndrome?

I77.89 — Other specified disorders of arteries and arterioles.

What is the ICD-10 code for neurogenic thoracic outlet compression syndrome?

G54.0 — Brachial plexus disorders.

What is the ICD-10 code for venous thoracic outlet compression syndrome?

I87.1 — Compression of vein.

Is G54.0 billable?

Yes. G54.0 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can G54.0 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict G54.0 as a principal diagnosis.

Is G54.0 a CC or MCC?

No. G54.0 is neither a CC nor an MCC under MS-DRG v44.0.