T81.718S — Complication of other artery following a procedure, not elsewhere classified, sequela
T81.718S is a billable, specific ICD-10-CM code for complication of other artery following a procedure, not elsewhere classified, sequela. It is valid for submission on a claim.
7th character "S" — sequela
The appropriate 7th character is to be added to each code from category T81
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Excludes1 inherited from the categories above T81.718S
These are not written on T81.718S, but they bind it: a note on a category applies to every code beneath it. Billing T81.718S with anything listed here is a denial.
Excludes2 inherited from the categories above T81.718S
Also inherited, and the opposite of Excludes1: these conditions are not part of T81.718S, but a patient can have both, so you may code both.
Written on T81.7 — Vascular complications following a procedure, not elsewhere classified
Written on T81 — Complications of procedures, not elsewhere classified
- complications following immunization (T88.0-T88.1)
- complications following infusion, transfusion and therapeutic injection (T80.-)
- complications of transplanted organs and tissue (T86.-)
- specified complications classified elsewhere, such as:
- complication of prosthetic devices, implants and grafts (T82-T85)
- dermatitis due to drugs and medicaments (L23.3, L24.4, L25.1, L27.0-L27.1)
- endosseous dental implant failure (M27.6-)
- floppy iris syndrome (IFIS) (intraoperative) H21.81
- intraoperative and postprocedural complications of specific body system (D78.-, E36.-, E89.-, G97.3-, G97.4, H59.3-, H59.-, H95.2-, H95.3, I97.4-, I97.5, J95, K91.-, L76.-, M96.-, N99.-)
- ostomy complications (J95.0-, K94.-, N99.5-)
- plateau iris syndrome (post-iridectomy) (postprocedural) H21.82
- poisoning and toxic effects of drugs and chemicals (T36-T65 with fifth or sixth character 1-4)
Risk adjustment
T81.718S does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
T81.718S is named in 16 Medicare coverage policies — 16 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A53057Billing and Coding: Home Health Occupational Therapy
- A53064Billing and Coding: Outpatient Occupational Therapy
- A53065Billing and Coding: Outpatient Physical Therapy
- A56580Billing and Coding: Computerized Axial Tomography (CT), Thorax
Code history
T81.718S has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.
Related codes at this level
Codes that share T81.718. If T81.718S is not quite right, the correct code is usually one of these.
Questions about T81.718S
- Is T81.718S a billable ICD-10-CM code?
- Yes. T81.718S is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does T81.718S sit in the tabular list?
- Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Complications of surgical and medical care, not elsewhere classified (T80-T88).
- What cannot be coded together with T81.718S?
- T81.718S carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above T81.718S (T81.7) and apply to it just the same.