2026 ICD-10-CM Diagnosis Code S11.91XSLaceration without foreign body of unspecified part of neck, sequela
S11.91XS is a billable ICD-10-CM diagnosis code for laceration without foreign body of unspecified part of neck, 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) and groups to MS-DRG 604 through 605. 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
S11.91XS 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.
- Complex laceration of neck
- Contaminated complex laceration of neck
- Contaminated simple laceration of neck
- Cut of head and neck
- Cut of neck
- Laceration of head and neck
- Laceration of neck
- Laceration of neck without foreign body
- Simple laceration of neck
- Stab wound of head
- Stab wound of head and neck
- Stab wound of neck
Coding GuidelinesGuidance
The appropriate 7th character is to be added to each code from block Open wound of neck (S11). 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
Neck Injuries and Disorders
Any part of your neck - muscles, bones, joints, tendons, ligaments, or nerves - can cause neck problems. Neck pain is very common. Pain may also come from your shoulder, jaw, head, or upper arms.
Read the full article at MedlinePlus
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Convert S11.91XS to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About S11.91XSOverview
Is S11.91XS (Laceration without foreign body of unspecified part of neck) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report laceration without foreign body of unspecified part of neck, sequela on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What does the 7th character S in S11.91XS mean?
The final character S makes this a sequela code: it reports a lingering problem that remains after the laceration without foreign body of unspecified part of neck itself has resolved, not the original event.
What MS-DRG does S11.91XS group to?
When laceration without foreign body of unspecified part of neck, sequela is the principal diagnosis on an inpatient stay, it groups to MS-DRG 604, 605, with relative weights from 0.9160 to 1.4721 depending on complications. Higher weights mean higher Medicare reimbursement.
Is S11.91XS 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 laceration without foreign body of unspecified part of neck, sequela on inpatient claims.
What is the ICD-9 equivalent of S11.91XS?
Under the General Equivalence Mappings, laceration without foreign body of unspecified part of neck, sequela converts to ICD-9-CM 906.0 (lt eff opn wnd head/trnk). 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.
