2026 ICD-10-CM Diagnosis Code S16.2XXALaceration of muscle, fascia and tendon at neck level, initial encounter
S16.2XXA is a billable ICD-10-CM diagnosis code for laceration of muscle, fascia and tendon at neck level, initial encounter. The 7th character A marks it as an initial encounter code, used while the patient is receiving active treatment. 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, 963 through 965. Coders also document this condition as injury of fascia of neck. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Open wounds of head and neck, initial encounter.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Injury of fascia of neck
- Injury of muscle of neck
- Injury of tendon of neck
- Laceration of fascia of neck
- Laceration of muscle of neck
- Laceration of tendon of neck
Coding GuidelinesGuidance
The appropriate 7th character is to be added to each code from block Injury of muscle, fascia and tendon at neck level (S16). 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.
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Convert S16.2XXA to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About S16.2XXAOverview
Is S16.2XXA (Laceration of muscle, fascia and tendon at neck level) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report laceration of muscle, fascia and tendon at neck level, initial encounter on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What does the 7th character A in S16.2XXA mean?
The final character A marks the initial encounter: use it while the patient is receiving active treatment for laceration of muscle, fascia and tendon at neck level, such as an emergency visit or first evaluation.
What MS-DRG does S16.2XXA group to?
When laceration of muscle, fascia and tendon at neck level, initial encounter is the principal diagnosis on an inpatient stay, it groups to MS-DRG 604, 605, 963, 964, 965, with relative weights from 0.9160 to 2.7338 depending on complications. Higher weights mean higher Medicare reimbursement.
What is the ICD-9 equivalent of S16.2XXA?
Under the General Equivalence Mappings, laceration of muscle, fascia and tendon at neck level, initial encounter converts to ICD-9-CM 874.8 (open wound of neck 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.
