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S14.3 vs S24.4XXA

S14.3 (Injury of brachial plexus) compared with S24.4XXA (Injury of thoracic sympathetic nervous system, initial encounter), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).

Relationship

Informational

Excludes2 relationship

S24.4XXA
Injury of thoracic sympathetic nervous system, initial encounter
S14.3
Injury of brachial plexus

Distinct conditions — both may be reported.

“injury of brachial plexus (S14.3)”

An Excludes2 note means the excluded condition is not part of the code above it, but a patient can have both. Report both when both are documented.

Source: CMS ICD-10-CM tabular instructional notes

Can these codes be reported together?

Yes, when both are documented. S24.4XXA carries an Excludes2 note covering S14.3: “injury of brachial plexus (S14.3)”

Excludes2 marks distinct conditions — both may be reported when both are documented.

Side by side

S14.3Injury of brachial plexusS24.4XXAInjury of thoracic sympathetic nervous system, initial encounter
Billing statusNon-billable headerBillable
ClassificationS00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88)S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88)
DefinitionInjury of brachial plexus is a non-billable ICD-10-CM category code (S14.3).Injury of thoracic sympathetic nervous system, initial encounter is a billable ICD-10-CM diagnosis code (S24.4A).
7th characterThe appropriate 7th character is to be added to each code from category S14The appropriate 7th character is to be added to each code from category S24
Includes
injuries of nape
injuries of supraclavicular region
injuries of throat
injuries of breast
injuries of chest (wall)
injuries of interscapular area
Injury of cardiac plexus

Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources