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ICD-10-CM 2027

ICD-10 code for medical procedures complication

T88.9

Complication of surgical and medical care, unspecified

Header — needs a more specific code

From the official ICD-10-CM alphabetic index entry “Complication (s) (from) (of) › medical procedures”. Page updated September 29, 2026.

About coding medical procedures complication

The ICD-10-CM code for medical procedures complication is T88.9 (Complication of surgical and medical care, unspecified).

Within T88, choose T88.9 (Complication of surgical and medical care, unspecified) only when documentation doesn't support a more specific option: infection following immunization (T88.0), other complications following immunization, not elsewhere classified (T88.1), shock due to anesthesia (T88.2), malignant hyperthermia due to anesthesia (T88.3), failed or difficult intubation (T88.4), other complications of anesthesia (T88.5), anaphylactic reaction due to adverse effect of correct drug or medicament properly administered (T88.6), unspecified adverse effect of drug or medicament (T88.7) and 1 more.

Codes in this range require a 7th character: A for initial encounter, D for subsequent encounter and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Common questions about medical procedures complication ICD-10 codes

What is the ICD-10 code for medical procedures complication?

T88.9 — Complication of surgical and medical care, unspecified (a header code; report a more specific subcode).

Is T88.9 billable?

No. T88.9 is a header code. Report one of its more specific subcodes instead.