2026 ICD-10-CM Diagnosis Code T81.328SDisruption or dehiscence of closure of other specified internal operation (surgical) wound, sequela
T81.328S is a billable ICD-10-CM diagnosis code for disruption or dehiscence of closure of other specified internal operation (surgical) wound, 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 922 through 923. The code is exempt from POA reporting. Coders also document this condition as bronchial anastomotic dehiscence. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Complication, sequela.
Code Identity
Code Classification
Present on Admission (POA)Billing
T81.328S 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.
- Bronchial anastomotic dehiscence
- Dehiscence of anastomosis
- Dehiscence of anastomosis of mucous membrane of bronchus
- Dehiscence of aortic valve annulus as complication of procedure
- Disorder of bronchial anastomosis
- Disruption of aortic valve annulus
- Esophageal anastomotic dehiscence
- Gastrointestinal anastomotic dehiscence
Coding GuidelinesGuidance
The appropriate 7th character is to be added to each code from block Complications of procedures, not elsewhere classified (T81). 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.
Code History & ChangesHistory
Replacement T81.328S replaces the following previously assigned code(s):
- T81.32XS - Disrupt of internal operation (surgical) wound, NEC, sequela
Questions About T81.328SOverview
Is T81.328S a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report disruption or dehiscence of closure of other specified internal operation (surgical) wound, sequela on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What does the 7th character S in T81.328S mean?
The final character S makes this a sequela code: it reports a lingering problem that remains after the disruption or dehiscence of closure of other specified internal operation (surgical) wound itself has resolved, not the original event.
What MS-DRG does T81.328S group to?
When disruption or dehiscence of closure of other specified internal operation (surgical) wound, sequela is the principal diagnosis on an inpatient stay, it groups to MS-DRG 922, 923, with relative weights from 1.0177 to 1.7494 depending on complications. Higher weights mean higher Medicare reimbursement.
Is T81.328S 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 disruption or dehiscence of closure of other specified internal operation (surgical) wound, sequela on inpatient claims.
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.
