2026 ICD-10-CM Diagnosis Code S14.3XXSInjury of brachial plexus, sequela
S14.3XXS is a billable ICD-10-CM diagnosis code for injury of brachial plexus, sequela. The 7th character S marks it as a sequela code, which reports a problem that remains after the original condition has resolved. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). The code is exempt from POA reporting. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Injury, sequela.
Code Identity
Code Classification
Present on Admission (POA)Billing
S14.3XXS is exempt from POA reporting on inpatient claims to general acute care hospitals. Review other POA exempt codes.
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Brachial plexopathy of left upper limb
- Brachial plexopathy of right upper limb
- Closed injury, brachial plexus, all roots
- Closed injury, brachial plexus, lower roots
- Closed injury, brachial plexus, upper roots
- Crutch paralysis
- Injury of brachial plexus
- Injury of brachial plexus cord
- Injury of brachial plexus division
- Injury of brachial plexus of left upper limb
- Injury of brachial plexus of right upper limb
- Injury of brachial plexus trunk
- Open injury, brachial plexus, all roots
- Open injury, brachial plexus, lower roots
- Open injury, brachial plexus, upper roots
- Traction injury of brachial plexus
- Traction injury of peripheral nerve
- Upper brachial plexus neuropathy
Coding GuidelinesGuidance
The appropriate 7th character is to be added to each code from block Injury of nerves and spinal cord at neck level (S14). Use the following options for the applicable episode of care:
- A - initial encounter
- D - subsequent encounter
- S - sequela
Source: ICD-10-CM Official Guidelines for Coding and Reporting, FY 2026, published by CMS and the National Center for Health Statistics.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Brachial Plexus Injuries
The brachial plexus is a network of nerves that sends signals from the spine to the shoulder, arm, and hand. Damage to the brachial plexus can cause symptoms such as:
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert S14.3XXS to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About S14.3XXSOverview
Is S14.3XXS (Injury of brachial plexus) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report injury of brachial plexus, sequela on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What does the 7th character S in S14.3XXS mean?
The final character S makes this a sequela code: it reports a lingering problem that remains after the injury of brachial plexus itself has resolved, not the original event.
Is S14.3XXS exempt from POA reporting?
Yes. CMS lists this code among those exempt from present on admission reporting, so hospitals do not assign a POA indicator for injury of brachial plexus, sequela on inpatient claims.
What is the ICD-9 equivalent of S14.3XXS?
Under the General Equivalence Mappings, injury of brachial plexus, sequela converts to ICD-9-CM 907.3 (lt eff nerv inj trnk NEC). The mapping is approximate, so confirm the match fits the documentation.
Footnotes
[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.
