T81.4

Non-billable

Infection following a procedure

T81.4 is the ICD-10-CM code for Infection following a procedure. It is a non-billable category code — use a more specific child code such as T81.40 for billing.

Status
Header (non-billable)
Chapter
S00-T88
Parent
T81
Subcodes
6
Edition
FY2026

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

What this means — in plain language

MedlinePlus · NIH

After any operation , you'll have some side effects. There is usually some pain with surgery. There may also be swelling and soreness around the area that the surgeon cut. Your surgeon can tell you which side effects to expect. There can also be complications. These are unplanned events linked to the operation. Some complications are infection, too much bleeding, reaction to anesthesia , or accidental injury. Some…

Read more about After Surgery at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

Includes

  • Wound abscess following a procedure

Excludes2 — not included here

  • bleb associated endophthalmitis (H59.4-)
  • infection due to infusion, transfusion and therapeutic injection (T80.2-)
  • infection due to prosthetic devices, implants and grafts (T82.6-T82.7, T83.5-T83.6, T84.5-T84.7, T85.7)
  • obstetric surgical wound infection (O86.0-)
  • postprocedural fever NOS (R50.82)
  • postprocedural retroperitoneal abscess (K68.11)

Use additional code

  • code to identify infection
  • code (R65.2-) to identify severe sepsis, if applicable

Notes

  • , if applicable, disruption of internal operation (surgical) wound (T81.32-)

Conditions mapped to this code

MedlinePlus · NIH

Plain-language health-topic references grounded in MedlinePlus (NIH/NLM).

Frequently asked questions

What is ICD-10 code T81.4?
T81.4 is the ICD-10-CM code for "Infection following a procedure". It falls under S00-T88 Injury, poisoning and certain other consequences of external causes.
Is T81.4 a billable code?
No — T81.4 is a non-billable header code. Use a more specific child code (such as T81.40) for billing.
What are the subcodes of T81.4?
T81.4 has 6 more specific child codes, including T81.40, T81.41, T81.42.

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

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