2026 ICD-10-CM Diagnosis Code S11.11XALaceration without foreign body of thyroid gland, initial encounter

ICD-10-CM Codes›S00–T88›S10-S19›S11

ICD-10-CM S11.11XA
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

S11.11XA is a billable ICD-10-CM diagnosis code for laceration without foreign body of thyroid gland, 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 643 through 645, 963 through 965. Coders also document this condition as laceration of thyroid gland. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Open wounds of head and neck, initial encounter.

Code Identity

ICD-10-CM Code
S11.11XA
Billable Status
Yes — Valid for Submission
Code Describes
Laceration without foreign body of thyroid gland, initial encounter
Short Description
Laceration w/o foreign body of thyroid gland, init encntr
Parent Code
S11.11
Laceration without foreign body of thyroid gland

Code Classification

ChapterS00–T88Injury, poisoning and certain other consequences of external causes
SectionS10-S19Injuries to the neck
CategoryS11Open wound of neck
This CodeS11.11XALaceration without foreign body of thyroid gland, initial encounter

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Laceration of thyroid gland
  • Open wound of thyroid

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.

CCSR INJ011
Open wounds of head and neck, initial encounter
Default principal diagnosis: inpatient Yes · outpatient Yes

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

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert S11.11XA to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
874.2 Open wound thyroid gland
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About S11.11XAOverview

Is S11.11XA (Laceration without foreign body of thyroid gland) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report laceration without foreign body of thyroid gland, initial encounter on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What does the 7th character A in S11.11XA mean?

The final character A marks the initial encounter: use it while the patient is receiving active treatment for laceration without foreign body of thyroid gland, such as an emergency visit or first evaluation.

What MS-DRG does S11.11XA group to?

When laceration without foreign body of thyroid gland, initial encounter is the principal diagnosis on an inpatient stay, it groups to MS-DRG 643, 644, 645, 963, 964, 965, with relative weights from 0.7683 to 2.7338 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of S11.11XA?

Under the General Equivalence Mappings, laceration without foreign body of thyroid gland, initial encounter converts to ICD-9-CM 874.2 (open wound thyroid gland). 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.