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FY2027 ICD-10-CM reference

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

By the HCC Buddy Coding Team

The official ICD-10-CM descriptor is Other complications of surgical and medical care, not elsewhere classified. The FY2027 annual edition starts October 1, 2026. Check the edition that applies to the encounter or inpatient discharge, including any April update.

Nonbillable heading. Verified against the official FY2027 order file.

CMS-HCC V28

Not applicable to this nonbillable heading

CMS-HCC V24

Not applicable to this nonbillable heading

ESRD

Not applicable to this nonbillable heading

PACE

Not applicable to this nonbillable heading

RxHCC

Not applicable to this nonbillable heading

HHS-HCC

Not applicable to this nonbillable heading

More specific FY2027 codes

FY2027 Tabular instructions

Instructions below include applicable chapter, section and parent-code notes. Each note identifies where it appears in the official source.

Instructional note

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

Source: S00-T88 (chapter, inherited).

Instructional note

code to identify any retained foreign body, if applicable (Z18.-)

Source: S00-T88 (chapter, inherited).

Excludes2

birth trauma (P10-P15)

Source: S00-T88 (chapter, inherited).

Excludes2

obstetric trauma (O70-O71)

Source: S00-T88 (chapter, inherited).

Instructional note

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.

Source: S00-T88 (chapter, inherited).

Instructional note

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

Source: T80-T88 (section, inherited).

Instructional note

code(s) to identify the specified condition resulting from the complication

Source: T80-T88 (section, inherited).

Instructional note

code to identify devices involved and details of circumstances (Y62-Y82)

Source: T80-T88 (section, inherited).

Excludes2

any encounters with medical care for postprocedural conditions in which no complications are present, such as:

Source: T80-T88 (section, inherited).

Excludes2

artificial opening status (Z93.-)

Source: T80-T88 (section, inherited).

Excludes2

closure of external stoma (Z43.-)

Source: T80-T88 (section, inherited).

Excludes2

fitting and adjustment of external prosthetic device (Z44.-)

Source: T80-T88 (section, inherited).

Excludes2

burns and corrosions from local applications and irradiation (T20-T32)

Source: T80-T88 (section, inherited).

Excludes2

complications of surgical procedures during pregnancy, childbirth and the puerperium (O00-O9A)

Source: T80-T88 (section, inherited).

Excludes2

mechanical complication of respirator [ventilator] (J95.850)

Source: T80-T88 (section, inherited).

Excludes2

poisoning and toxic effects of drugs and chemicals (T36-T65 with fifth or sixth character 1-4 or 6)

Source: T80-T88 (section, inherited).

Excludes2

postprocedural fever (R50.82)

Source: T80-T88 (section, inherited).

Excludes2

specified complications classified elsewhere, such as:

Source: T80-T88 (section, inherited).

Excludes2

cerebrospinal fluid leak from spinal puncture (G97.0)

Source: T80-T88 (section, inherited).

Excludes2

colostomy malfunction (K94.0-)

Source: T80-T88 (section, inherited).

Excludes2

disorders of fluid and electrolyte imbalance (E86-E87)

Source: T80-T88 (section, inherited).

Excludes2

functional disturbances following cardiac surgery (I97.0-I97.1)

Source: T80-T88 (section, inherited).

Excludes2

intraoperative and postprocedural complications of specified body systems (D78.-, E36.-, E89.-, G97.3-, G97.4, H59.3-, H59.-, H95.2-, H95.3, I97.4-, I97.5, J95.6-, J95.7, K91.6-, L76.-, M96.-, N99.-)

Source: T80-T88 (section, inherited).

Excludes2

ostomy complications (J95.0-, K94.-, N99.5-)

Source: T80-T88 (section, inherited).

Excludes2

postgastric surgery syndromes (K91.1)

Source: T80-T88 (section, inherited).

Excludes2

postlaminectomy syndrome NEC (M96.1)

Source: T80-T88 (section, inherited).

Excludes2

postmastectomy lymphedema syndrome (I97.2)

Source: T80-T88 (section, inherited).

Excludes2

postsurgical blind-loop syndrome (K91.2)

Source: T80-T88 (section, inherited).

Excludes2

ventilator associated pneumonia (J95.851)

Source: T80-T88 (section, inherited).

Excludes2

complication following infusion, transfusion and therapeutic injection (T80.-)

Source: T88 (category, direct).

Excludes2

complication following procedure NEC (T81.-)

Source: T88 (category, direct).

Excludes2

complications of anesthesia in labor and delivery (O74.-)

Source: T88 (category, direct).

Excludes2

complications of anesthesia in pregnancy (O29.-)

Source: T88 (category, direct).

Excludes2

complications of anesthesia in puerperium (O89.-)

Source: T88 (category, direct).

Excludes2

complications of devices, implants and grafts (T82-T85)

Source: T88 (category, direct).

Excludes2

complications of obstetric surgery and procedure (O75.4)

Source: T88 (category, direct).

Excludes2

dermatitis due to drugs and medicaments (L23.3, L24.4, L25.1, L27.0-L27.1)

Source: T88 (category, direct).

Excludes2

poisoning and toxic effects of drugs and chemicals (T36-T65 with fifth or sixth character 1-4)

Source: T88 (category, direct).

Excludes2

specified complications classified elsewhere

Source: T88 (category, direct).

Seventh-character instruction

The appropriate 7th character is to be added to each code from category T88

Source: T88 (category, direct).

Instructional note

initial encounter

Source: T88 (category, direct).

Instructional note

subsequent encounter

Source: T88 (category, direct).

Instructional note

sequela

Source: T88 (category, direct).

Seventh-character definitions

  • A: initial encounter
  • D: subsequent encounter
  • S: sequela

Source: CMS FY2027 Tabular List and Alphabetic Index.

Open Tabular instructions and code details

Compare the FY2027 additions, removals and billable-status changes

What does T88 mean in FY2027?

The official ICD-10-CM descriptor is Other complications of surgical and medical care, not elsewhere classified. The FY2027 annual edition starts October 1, 2026. Check the edition that applies to the encounter or inpatient discharge, including any April update.

Is T88 billable in FY2027?

The FY2027 order file marks T88 as a nonbillable heading. Select a complete billable child code.

Does T88 map to an HCC?

Risk-model mapping is not applicable to this nonbillable heading. Check a complete billable child code.

Source: CMS FY2027 ICD-10-CM order file. Read the FY2027 Official Guidelines.

Review the FY2026 April edition