T81

Non-billable

Complications of procedures, not elsewhere classified

T81 is the ICD-10-CM code for Complications of procedures, not elsewhere classified. It is a non-billable category code — use a more specific child code such as T81.1 for billing.

Status
Header (non-billable)
Chapter
S00-T88
Subcodes
8
Edition
FY2026

S00-T88 Injury, poisoning and certain other consequences of external causes

Excludes2 — not included here

  • 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)

Use additional code

  • code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)

Frequently asked questions

What is ICD-10 code T81?
T81 is the ICD-10-CM code for "Complications of procedures, not elsewhere classified". It falls under S00-T88 Injury, poisoning and certain other consequences of external causes.
Is T81 a billable code?
No — T81 is a non-billable header code. Use a more specific child code (such as T81.1) for billing.
What are the subcodes of T81?
T81 has 8 more specific child codes, including T81.1, T81.3, T81.4.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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