DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

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

  • Header · not billable
  • Codes take a 7th character

T88 is not billable. The category heads 39 billable codes in FY2027, grouped under 10 subdivisions. Its codes take a 7th character, so none is complete with fewer than 7 characters.

Index → code

  • Paraffinoma → T88.8
  • Intubation, difficult or failed → T88.4
  • Vaccinia (generalized) (localized) → T88.1

Where it sits

  1. Chapter 19 Injury, poisoning and certain other consequences of external causes (S00-T88)
  2. T80-T88 Complications of surgical and medical care, not elsewhere classified (T80-T88)
  3. T88 Other complications of surgical and medical care, not elsewhere classified
Billable codes
39
Subdivisions
10
CC / MCC codes
5 / 0
HCC V28 codes
0
New FY2027
0
Index entries
72

Codes in T88

  1. T88.0
    Infection following immunization +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
    Inclusion terms 1

    Inclusion terms

    • Sepsis following immunization
  2. T88.1
    Other complications following immunization, not elsewhere classified +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
    Inclusion terms 2, Excludes1 1, Excludes2 5

    Inclusion terms

    • Generalized vaccinia
    • Rash following immunization

    Excludes1

    • vaccinia not from vaccine (B08.011) B08.011

    Excludes2

    • anaphylactic shock due to serum (T80.5-) T80.5
    • other serum reactions (T80.6-) T80.6
    • postimmunization arthropathy (M02.2) M02.2
    • postimmunization encephalitis (G04.02) G04.02
    • postimmunization fever (R50.83) R50.83
  3. T88.2
    Shock due to anesthesia +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
    Excludes1 5, Use additional code 1

    Excludes1

    • complications of anesthesia (in):
    • labor and delivery (O74.-) O74
    • pregnancy (O29.-) O29
    • puerperium (O89.-) O89
    • postprocedural shock NOS (T81.1-) T81.1

    Use additional code

    • code for adverse effect, if applicable, to identify drug (T41.- with fifth or sixth character 5) T41
  4. T88.3
    Malignant hyperthermia due to anesthesia +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
    Use additional code 1

    Use additional code

    • code for adverse effect, if applicable, to identify drug (T41.- with fifth or sixth character 5) T41
  5. T88.4
    Failed or difficult intubation +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  6. T88.5
    Other complications of anesthesia
    Header
    Use additional code 1

    Use additional code

    • code for adverse effect, if applicable, to identify drug (T41.- with fifth or sixth character 5) T41
  7. T88.51
    Hypothermia following anesthesia +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  8. T88.52
    Failed moderate sedation during procedure +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
    Inclusion terms 1, Excludes2 1

    Inclusion terms

    • Failed conscious sedation during procedure

    Excludes2

    • personal history of failed moderate sedation (Z92.83) Z92.83
  9. T88.53
    Unintended awareness under general anesthesia during procedure +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
    Excludes2 1

    Excludes2

    • personal history of unintended awareness under general anesthesia (Z92.84) Z92.84
  10. T88.59
    Other complications of anesthesia +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  11. T88.6
    Anaphylactic reaction due to adverse effect of correct drug or medicament properly administered +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
    Inclusion terms 2, Excludes1 2, Use additional code 1

    Inclusion terms

    • Anaphylactic shock due to adverse effect of correct drug or medicament properly administered
    • Anaphylactoid reaction NOS

    Excludes1

    • anaphylactic reaction due to serum (T80.5-) T80.5
    • anaphylactic shock or reaction due to adverse food reaction (T78.0-) T78.0

    Use additional code

    • code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5) T36 T50
  12. T88.7
    Unspecified adverse effect of drug or medicament +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
    Inclusion terms 2, Excludes1 1, Use additional code 1

    Inclusion terms

    • Drug hypersensitivity NOS
    • Drug reaction NOS

    Excludes1

    • specified adverse effects of drugs and medicaments (A00-R94 and T80-T88.6, T88.8) A00 R94 T80 T88.6 T88.8

    Use additional code

    • code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5) T36 T50
  13. T88.8
    Other specified complications of surgical and medical care, not elsewhere classified +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
    Use additional code 1

    Use additional code

    • code to identify the complication
  14. T88.9
    Complication of surgical and medical care, unspecified +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters

CC/MCC: as a secondary diagnosis, unless the principal diagnosis is on the code’s PDX exclusion list (MS-DRG v44 Appendix C; list on the code card).

Sources of each column. Rows marked +7th need a 7th character: pick one to build the full code; its code card has its own flags.

Instructions

At T88

Excludes2

  • complication following infusion, transfusion and therapeutic injection (T80.-) T80
  • complication following procedure NEC (T81.-) T81
  • complications of anesthesia in labor and delivery (O74.-) O74
  • complications of anesthesia in pregnancy (O29.-) O29
  • complications of anesthesia in puerperium (O89.-) O89
  • complications of devices, implants and grafts (T82-T85) T82 T85
  • complications of obstetric surgery and procedure (O75.4) O75.4
  • dermatitis due to drugs and medicaments (L23.3, L24.4, L25.1, L27.0-L27.1) 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) T36 T65
  • specified complications classified elsewhere

Notes that also apply

Block T80-T88 instructions (Excludes2 21, Use additional code 3): printed on the block page.

Chapter 19 instructions (Notes 2, Excludes2 2, Use additional code 1): printed on the chapter 19 page.

7th characters

7th characters for T88 defined here

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

7th characters for T88
7thMeaning (NCHS)
Ainitial encounter
Dsubsequent encounter
Ssequela

A code that takes a 7th character is invalid without it; the placeholder X fills a code shorter than 6 characters (Official Guidelines I.A.5). How 7th characters work.

Index entries

  • Vaccinia (generalized) (localized) → T88.1
  • Intubation, difficult or failed → T88.4
  • Paraffinoma → T88.8
  • Misadventure (of) (prophylactic) (therapeutic) → T88.9
  • Cellulitis (diffuse) (phlegmonous) (septic) (suppurative)vaccinal → T88.0
  • Infection, infected, infective (opportunistic)postvaccinal → T88.0
  • Infection, infected, infective (opportunistic)vaccination → T88.0
  • Pyemia, pyemic (fever) (infection) (purulent)postvaccinal → T88.0
  • Complication(s) (from) (of)vaccination → T88.1
  • Cowpoxdue to vaccination → T88.1
  • Eczema (acute) (chronic) (erythematous) (fissum) (rubrum) (squamous)vaccination, vaccinatum → T88.1
  • Rash (toxic)following immunization → T88.1
  • Anesthesia, anestheticshock (due to) → T88.2
  • Hyperpyrexiamalignant, due to anesthetic → T88.3
  • Hyperthermia (of unknown origin)malignant, due to anesthesia → T88.3
  • Difficult, difficulty (in)intubation, in anesthesia → T88.4
  • Failure, failedintubation during anesthesia → T88.4
  • Hypothermia (accidental)due to anesthesia, anesthetic → T88.51
  • Failure, failedsedation (conscious) (moderate) during procedure → T88.52
  • Anesthesia, anestheticcomplication or reaction NEC → T88.59
  • Complication(s) (from) (of)anesthesia, anesthetic → T88.59
  • Effect, adverseanesthesia → T88.59
  • Headachespinal and epidural anesthesia - induced → T88.59
  • Reactiontoxic, to local anesthesia → T88.59
  • Complication(s) (from) (of)chemotherapy (antineoplastic) NEC → T88.7
  • Complication(s) (from) (of)drug NEC → T88.7
  • Damagemedication → T88.7
  • Effect, adversedrugs and medicaments → T88.7
  • Hypersensitive, hypersensitiveness, hypersensitivitydrug → T88.7
  • Reactiondrug NEC → T88.7
  • Misadventure (of) (prophylactic) (therapeutic)specified NEC → T88.8
  • Complication(s) (from) (of)electroshock therapy → T88.9
  • Complication(s) (from) (of)medical procedures → T88.9
  • Complication(s) (from) (of)phototherapy → T88.9
  • Complication(s) (from) (of)ultrasound therapy NEC → T88.9
  • Effect, adversemedical care → T88.9
  • Misadventure (of) (prophylactic) (therapeutic)local applications (of fomentations, plasters, etc.) → T88.9
  • Misadventure (of) (prophylactic) (therapeutic)medical care (early) (late) → T88.9
  • Complication(s) (from) (of)vaccinationcellulitis → T88.0
  • Complication(s) (from) (of)vaccinationinfection (general) (local) NEC → T88.0

32 more, longer entries are not listed; the search box finds them by word.

NCHS Alphabetic Index. Index first, then the Tabular List.

Hierarchy