ICD-10-CM 2027 diagnosis code
G54.0Brachial plexus disorders
G54.0 is a valid, billable ICD-10-CM code for brachial plexus disorders. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.
Looking up by condition? See ICD-10 code for Plexitis, ICD-10 code for Wright's syndrome, ICD-10 code for Naffziger's syndrome, ICD-10 code for Brachial plexus paralysis.
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About G54.0
G54.0 is the ICD-10-CM diagnosis code for brachial plexus disorders. It belongs to category G54 (nerve root and plexus disorders), block G50-G59 (nerve, nerve root and plexus disorders) and chapter 6 (diseases of the nervous system). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.
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.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Before ICD-10, this condition was coded in ICD-9-CM as 353.0 (brachial plexus lesions).
Coding notes
- Thoracic outlet syndrome
Notes that apply from higher levels
Instructions written at a parent level also apply to G54.0.
› From G54 Nerve root and plexus disorders
- current traumatic nerve root and plexus disorders - see nerve injury by body region
- intervertebral disc disorders (M50-M51)
- neuralgia or neuritis NOS (M79.2)
- neuritis or radiculitis brachial NOS (M54.13)
- neuritis or radiculitis lumbar NOS (M54.16)
- neuritis or radiculitis lumbosacral NOS (M54.17)
- neuritis or radiculitis thoracic NOS (M54.14)
- radiculitis NOS (M54.10)
- radiculopathy NOS (M54.10)
- spondylosis (M47.-)
Broader instructions also apply from G50-G59 Nerve, nerve root and plexus disorders and Chapter 6: Diseases of the nervous system.
Alphabetic index entries
34 entriesTerms in the official ICD-10-CM index that lead to G54.0.
- Angiospasm (peripheral) (traumatic) (vessel) › brachial plexus
- Angiospasm (peripheral) (traumatic) (vessel) › nerve › arm › axillary
- Angiospasm (peripheral) (traumatic) (vessel) › nerve › axillary
- Compression › brachial plexus
- Compression › nerve › axillary
- Degeneration, degenerative › brachial plexus
- Disorder (of) › brachial plexus
- Disorder (of) › nerve › axillary
- Irritation › axillary nerve
- Irritation › brachial plexus
- Lesion (s) (nontraumatic) › brachial plexus
- Naffziger's syndrome
- Neuropathy, neuropathic › brachial plexus
- Palsy › brachial plexus NEC
- Paralysis, paralytic (complete) (incomplete) › axillary
- Paralysis, paralytic (complete) (incomplete) › brachial plexus
- Plexitis, brachial
- Pressure › brachial plexus
- Scalenus anticus (anterior) syndrome
- Syndrome › brachial plexus
- Syndrome › cervicothoracic outlet
- Syndrome › costoclavicular
- Syndrome › hyperabduction
- Syndrome › middle radicular
- Syndrome › Naffziger's
- Syndrome › outlet (thoracic)
- Syndrome › scalenus anticus (anterior)
- Syndrome › subcoracoid-pectoralis minor
- Syndrome › thoracic outlet (compression)
- Syndrome › thoracic outlet (compression) › neurogenic
- Syndrome › Wright's (hyperabduction)
- Thoracic › outlet syndrome
- Vasospasm (vasoconstriction) › nerve › brachial plexus
- Wright's syndrome
Codes whose notes reference G54.0
- M53.1Excludes2
MS-DRG v44.0 grouping
All DRGs →Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.
MDC 01 · Diseases and Disorders of the Nervous System
ICD-9-CM equivalent
Converter →- 353.0Brachial plexus lesionsapproximate
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about G54.0
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.
What DRG does G54.0 group to?
- G54.0 is used in the MS-DRG v44.0 logic for MS-DRG 073 (Cranial and Peripheral Nerve Disorders with MCC) and MS-DRG 074 (Cranial and Peripheral Nerve Disorders without MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.
What is the ICD-9 code for G54.0?
- The CMS General Equivalence Mappings map G54.0 to ICD-9-CM 353.0.