Effective from
- Inherited rules changed
Deep disruption or dehiscence of operation wound, unspecified
Category — select a more specific code
CDC/NCHS · FY2025 · 04-01code to identify any retained foreign body, if applicable (Z18.-)
code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)
A — initial encounter
D — subsequent encounter
S — sequela
For US diagnosis claims covered by HIPAA, ICD-10-CM is required from October 1, 2015.
Use the service date for outpatient/professional claims and the discharge date for hospital inpatient claims. Earlier encounters use ICD-9-CM; each individual code must also be valid for the applicable date.
Official coding guidelines → · CMS ↗First observed · 2024-10-01
Latest recorded change · FY2025 · 04-01
Effective from
Deep disruption or dehiscence of operation wound, unspecified
Category — select a more specific code
CDC/NCHS · FY2025 · 04-01| All editions | Effective from | Code history |
|---|---|---|
| FY2025 | 2024-10-01 | Added |
| FY2025 · 04-01 | 2025-04-01 | Inherited rules changed |
| FY2026 | 2025-10-01 | No tabular change |
| FY2026 · April | 2026-04-01 | No tabular change |
| FY2027 | 2026-10-01 | No tabular change |
Deep disruption or dehiscence of operation wound NOS
code to identify any retained foreign body, if applicable (Z18.-)
code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)
The appropriate 7th character is to be added to each code from category T81
A — initial encounter
D — subsequent encounter
S — sequela
Disruption of any suture materials or other closure methods
T81.329ADeep disruption or dehiscence of operation wound, unspecified, initial encounterBillable / specificT81.329DDeep disruption or dehiscence of operation wound, unspecified, subsequent encounterBillable / specificT81.329SDeep disruption or dehiscence of operation wound, unspecified, sequelaBillable / specificOther entries in the same category; these are not automatic substitutes.
| Code | Description | Category · further specificity required |
|---|---|---|
| T81.320 | Disruption or dehiscence of gastrointestinal tract anastomosis, repair, or closure | Category · further specificity required |
| T81.321 | Disruption or dehiscence of closure of internal operation (surgical) wound of abdominal wall muscle or fascia | Category · further specificity required |
| T81.328 | Disruption or dehiscence of closure of other specified internal operation (surgical) wound | Category · further specificity required |
Official titles and instructions are preserved in their source language. Official sources ↗