2027 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 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 91 through 93. 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 the other POA exempt codes in Injuries to the neck (S10-S19).
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 2027, published by CMS and the National Center for Health Statistics.
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to S14.3XXS: its own notes plus those printed at S14, block S10-S19, and Chapter 19. A note printed at a category, block or chapter applies to every code under it.
Includes
Further defines, or gives examples of, the content of the category.
- injuries of nape
- injuries of supraclavicular region
- injuries of throat
Excludes2
Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.
Use Additional Code
Add a second code, after this one, to fully describe the condition.
- code to identify any retained foreign body, if applicable (Z18.-)
Code Also
A second code may be needed to fully describe the condition; the note gives no sequencing direction.
Notes
General instructions on how these codes are used.
- Code to highest level of cervical cord injury
- Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
- The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.
7th Character
Every code in the category takes a 7th character from the listed values, with the placeholder X filling any empty positions before it.
- The appropriate 7th character is to be added to each code from category S14
- Ainitial encounter
- Dsubsequent encounter
- Ssequela this code
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name S14.3XXS, its category, or a range that includes it.
Excludes1 1
These codes carry an Excludes1 note naming S14.3XXS: they are not reported together with it, unless the two conditions are unrelated.
Excludes2 2
These codes carry an Excludes2 note naming S14.3XXS: its condition is not part of those codes, and both may be reported when the patient has both.
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
What is the ICD-10 code for injury of brachial plexus, sequela?
The ICD-10-CM code for injury of brachial plexus, sequela is S14.3XXS (sometimes written as S143XXS). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
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, 2026 through September 30, 2027.
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.
What MS-DRG does S14.3XXS group to?
When injury of brachial plexus, sequela is the principal diagnosis on an inpatient stay, it groups to MS-DRG 91, 92, 93, with relative weights from 0.7783 to 1.7050 depending on complications. Higher weights mean higher Medicare reimbursement.
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. The code appears in the Injuries to the neck (S10-S19) range of the CMS exempt list.
