2026 ICD-10-CM Diagnosis Code S11.023APuncture wound without foreign body of trachea, initial encounter
ICD-10-CM Codes›S00–T88›S10-S19›S11
- Billable — Valid for Submission
- MCC — Major Complication or Comorbidity
- 7th Character A — Initial Encounter
- Not Chronic
S11.023A is a billable ICD-10-CM diagnosis code for puncture wound without foreign body of trachea, 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 11 through 13, 183 through 185, 963 through 965. As a secondary diagnosis, it counts as a major complication or comorbidity (MCC) and places an inpatient stay in the highest severity level of its MS-DRG family. It does not count, however, when the principal diagnosis is one of 51 closely related codes. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Open wounds of head and neck, initial encounter.
Code Identity
Code Classification
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
Tracheal Disorders
Your trachea, or windpipe, is one part of your airway system. Airways are pipes that carry oxygen-rich air to your lungs. They also carry carbon dioxide, a waste gas, out of your lungs.
Read the full article at MedlinePlus
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Convert S11.023A to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About S11.023AOverview
What is the ICD-10 code for puncture wound without foreign body of trachea, initial encounter?
The ICD-10-CM code for puncture wound without foreign body of trachea, initial encounter is S11.023A (sometimes written as S11023A). It is billable on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
Is S11.023A (Puncture wound without foreign body of trachea) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report puncture wound without foreign body of trachea, initial encounter on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What does the 7th character A in S11.023A mean?
The final character A marks the initial encounter: use it while the patient is receiving active treatment for puncture wound without foreign body of trachea, such as an emergency visit or first evaluation.
What MS-DRG does S11.023A group to?
When puncture wound without foreign body of trachea, initial encounter is the principal diagnosis on an inpatient stay, it groups to MS-DRG 11, 12, 13, 183, 184, 185, 963, 964, 965, with relative weights from 0.7865 to 5.4541 depending on complications. Higher weights mean higher Medicare reimbursement.
Is S11.023A a CC or MCC?
CMS lists S11.023A as an MCC (major complication or comorbidity) for FY 2026. Reported as a secondary diagnosis, it places the inpatient stay in the highest-weighted DRG of its severity family. It does not count when the principal diagnosis is one of the 51 closely related codes in its exclusion list.
