FY2027 ICD-10-CM reference
G54.0: Brachial plexus disorders
By the HCC Buddy Coding Team
The official ICD-10-CM descriptor is Brachial plexus disorders. The FY2027 annual edition starts October 1, 2026. Check the edition that applies to the encounter or inpatient discharge, including any April update.
Billable code. Verified against the official FY2027 order file.
FY2027 Tabular instructions
Instructions below include applicable chapter, section and parent-code notes. Each note identifies where it appears in the official source.
Excludes2
certain conditions originating in the perinatal period (P04-P96)
Source: G00-G99 (chapter, inherited).
Excludes2
certain infectious and parasitic diseases (A00-B99)
Source: G00-G99 (chapter, inherited).
Excludes2
complications of pregnancy, childbirth and the puerperium (O00-O9A)
Source: G00-G99 (chapter, inherited).
Excludes2
congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
Source: G00-G99 (chapter, inherited).
Excludes2
endocrine, nutritional and metabolic diseases (E00-E88)
Source: G00-G99 (chapter, inherited).
Excludes2
injury, poisoning and certain other consequences of external causes (S00-T88)
Source: G00-G99 (chapter, inherited).
Excludes2
neoplasms (C00-D49)
Source: G00-G99 (chapter, inherited).
Excludes2
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Source: G00-G99 (chapter, inherited).
Excludes1
current traumatic nerve, nerve root and plexus disorders - see Injury, nerve by body region
Source: G50-G59 (section, inherited).
Excludes1
neuralgia NOS (M79.2)
Source: G50-G59 (section, inherited).
Excludes1
neuritis NOS (M79.2)
Source: G50-G59 (section, inherited).
Excludes1
peripheral neuritis in pregnancy (O26.82-)
Source: G50-G59 (section, inherited).
Excludes1
radiculitis NOS (M54.1-)
Source: G50-G59 (section, inherited).
Excludes1
current traumatic nerve root and plexus disorders - see nerve injury by body region
Source: G54 (category, inherited).
Excludes1
intervertebral disc disorders (M50-M51)
Source: G54 (category, inherited).
Excludes1
neuralgia or neuritis NOS (M79.2)
Source: G54 (category, inherited).
Excludes1
neuritis or radiculitis brachial NOS (M54.13)
Source: G54 (category, inherited).
Excludes1
neuritis or radiculitis lumbar NOS (M54.16)
Source: G54 (category, inherited).
Excludes1
neuritis or radiculitis lumbosacral NOS (M54.17)
Source: G54 (category, inherited).
Excludes1
neuritis or radiculitis thoracic NOS (M54.14)
Source: G54 (category, inherited).
Excludes1
radiculitis NOS (M54.10)
Source: G54 (category, inherited).
Excludes1
radiculopathy NOS (M54.10)
Source: G54 (category, inherited).
Excludes1
spondylosis (M47.-)
Source: G54 (category, inherited).
Instructional note
Thoracic outlet syndrome
Source: G54.0 (self, direct).
Compare the FY2027 additions, removals and billable-status changes
What does G54.0 mean in FY2027?
The official ICD-10-CM descriptor is Brachial plexus disorders. The FY2027 annual edition starts October 1, 2026. Check the edition that applies to the encounter or inpatient discharge, including any April update.
Is G54.0 billable in FY2027?
The FY2027 order file marks G54.0 as billable. Check the complete Tabular instructions and documentation before assigning it.
Does G54.0 map to an HCC?
G54.0 has no CMS-HCC V28 category in the CMS 2027 Initial ICD-10-CM Mappings (payment year 2027, 2026 dates of service). ESRD, RxHCC, PACE and HHS-HCC mappings are still pending verification for FY2027.
Source: CMS FY2027 ICD-10-CM order file. Read the FY2027 Official Guidelines.
Review the FY2026 April edition