T82.311A — Breakdown (mechanical) of carotid arterial graft (bypass), initial encounter
Is T82.311A billable?
Yes — T82.311A is billable for FY2027. T82.311A is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. T82.311A may be submitted for encounters from October 1, 2026 through September 30, 2027.
T82.311A at a glance
| Code | T82.311A |
|---|---|
| Description | Breakdown (mechanical) of carotid arterial graft (bypass), initial encounter |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
| 7th character "A" | initial encounter |
What does the 7th character "A" mean in T82.311A?
In T82.311A, the 7th character A means initial encounter. The 7th character is required for T82.311A to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
Which MS-DRGs does T82.311A group to?
T82.311A sits in MDC 05 and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 314Other Circulatory System Diagnoses with MCCmedical
- 315Other Circulatory System Diagnoses with CCmedical
- 316Other Circulatory System Diagnoses without CC/MCCmedical
As a secondary diagnosis, T82.311A is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.
How is T82.311A listed in the Alphabetic Index?
The Alphabetic Index lists these routes under T82.311, the nearest indexed parent of T82.311A. Use them to find the family, then select the specific code.
- Complication › graft › vascular › mechanical › breakdown › carotid artery (s) (from) (of)
- Complication › vascular › graft › mechanical › breakdown › carotid artery (s) (from) (of)
Use additional code — inherited from Chapter 19
Report an additional code alongside T82.311A to fully describe the condition. T82.311A is sequenced first.
- code to identify any retained foreign body, if applicable (Z18.-)
Use additional code — inherited from T80-T88
Report an additional code alongside T82.311A to fully describe the condition. T82.311A is sequenced first.
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of T82.311A, but a patient may have both at the same time. When documentation supports it, T82.311A and the excluded code may both be reported.
Excludes2 — not included here — inherited from T80-T88
The conditions below are not part of T82.311A, but a patient may have both at the same time. When documentation supports it, T82.311A and the excluded code may both be reported.
- any encounters with medical care for postprocedural conditions in which no complications are present, such as:
- artificial opening status (Z93.-)
- closure of external stoma (Z43.-)
- fitting and adjustment of external prosthetic device (Z44.-)
- burns and corrosions from local applications and irradiation (T20-T32)
- complications of surgical procedures during pregnancy, childbirth and the puerperium (O00-O9A)
- mechanical complication of respirator [ventilator] (J95.850)
- poisoning and toxic effects of drugs and chemicals (T36-T65 with fifth or sixth character 1-4 or 6)
- postprocedural fever (R50.82)
- specified complications classified elsewhere, such as:
- cerebrospinal fluid leak from spinal puncture (G97.0)
- colostomy malfunction (K94.0-)
- disorders of fluid and electrolyte imbalance (E86-E87)
- functional disturbances following cardiac surgery (I97.0-I97.1)
- intraoperative and postprocedural complications of specified body systems (D78.-, E36.-, E89.-, G97.3-, G97.4, H59.3-, H59.-, H95.2-, H95.3, I97.4-, I97.5, J95.6-, J95.7, K91.6-, L76.-, M96.-, N99.-)
- ostomy complications (J95.0-, K94.-, N99.5-)
- postgastric surgery syndromes (K91.1)
- postlaminectomy syndrome NEC (M96.1)
- postmastectomy lymphedema syndrome (I97.2)
- postsurgical blind-loop syndrome (K91.2)
- ventilator associated pneumonia (J95.851)
Excludes2 — not included here — inherited from T82
The conditions below are not part of T82.311A, but a patient may have both at the same time. When documentation supports it, T82.311A and the excluded code may both be reported.
- failure and rejection of transplanted organs and tissue (T86.-)
How long has T82.311A existed?
T82.311A has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.