Coding and coverage · ICD-10-CM

T88 Other complications of surgical and medical care, not elsewhere classified

Not billable (header)Chapter 19

This code needs a 7th character (use X as a placeholder for missing characters).

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Codes under this one

  • T88.0 Infection following immunizationHeader
  • T88.1 Other complications following immunization, not elsewhere classifiedHeader
  • T88.2 Shock due to anesthesiaHeader
  • T88.3 Malignant hyperthermia due to anesthesiaHeader
  • T88.4 Failed or difficult intubationHeader
  • T88.5 Other complications of anesthesiaHeader
  • T88.6 Anaphylactic reaction due to adverse effect of correct drug or medicament properly administeredHeader
  • T88.7 Unspecified adverse effect of drug or medicamentHeader
  • T88.8 Other specified complications of surgical and medical care, not elsewhere classifiedHeader
  • T88.9 Complication of surgical and medical care, unspecifiedHeader

Instructional notes

Chapter 19

Excludes2Not included here: the patient may have both; report both when both are present.
Use additional codeAdd a second code for the full picture.
  • code to identify any retained foreign body, if applicable (Z18.-)
Notes
  • Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
  • The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.

This code

Excludes2Not included here: the patient may have both; report both when both are present.
  • complication following infusion, transfusion and therapeutic injection (T80.-)
  • complication following procedure NEC (T81.-)
  • complications of anesthesia in labor and delivery (O74.-)
  • complications of anesthesia in pregnancy (O29.-)
  • complications of anesthesia in puerperium (O89.-)
  • complications of devices, implants and grafts (T82-T85)
  • complications of obstetric surgery and procedure (O75.4)
  • dermatitis due to drugs and medicaments (L23.3, L24.4, L25.1, L27.0-L27.1)
  • poisoning and toxic effects of drugs and chemicals (T36-T65 with fifth or sixth character 1-4)
  • specified complications classified elsewhere
7th charactersThe appropriate 7th character is to be added to each code from category T88
  • A initial encounter
  • D subsequent encounter
  • S sequela

Chapter 19: Injury, poisoning and certain other consequences of external causes · T07-T88 Injury, poisoning and certain other consequences of external causes (T07-T88)

Source: ICD-10-CM FY 2027 code descriptions and tabular list (CMS and CDC National Center for Health Statistics), effective 2026-10-01 through 2027-09-30 · CMS ICD-10 files. HCC mapping: CMS-HCC V28, payment year 2027. As of 2026-11-04.

Coverage and payment depend on the claim details; confirm with the Medicare Administrative Contractor.