2018 ICD-10-CM Diagnosis Code T78.2

Anaphylactic shock, unspecified

Applicable To
  • Allergic shock
  • Anaphylactic reaction
  • Anaphylaxis
Type 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as T78.2. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • anaphylactic reaction or shock due to adverse effect of correct medicinal substance properly administered (
    ICD-10-CM Diagnosis Code T88.6

    Anaphylactic reaction due to adverse effect of correct drug or medicament properly administered

      2016 2017 2018 Non-Billable/Non-Specific Code
    Applicable To
    • Anaphylactic shock due to adverse effect of correct drug or medicament properly administered
    • Anaphylactoid reaction NOS
    Type 1 Excludes
    • anaphylactic reaction due to serum (T80.5-)
    • anaphylactic shock or reaction due to adverse food reaction (T78.0-)
    Use Additional
    • code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)
    T88.6
    )
  • anaphylactic reaction or shock due to adverse food reaction (
    ICD-10-CM Diagnosis Code T78.0

    Anaphylactic reaction due to food

      2016 2017 2018 Non-Billable/Non-Specific Code
    Applicable To
    • Anaphylactic reaction due to adverse food reaction
    • Anaphylactic shock or reaction due to nonpoisonous foods
    • Anaphylactoid reaction due to food
    T78.0-
    )
  • anaphylactic reaction or shock due to serum (
    ICD-10-CM Diagnosis Code T80.5

    Anaphylactic reaction due to serum

      2016 2017 2018 Non-Billable/Non-Specific Code
    Applicable To
    • Allergic shock due to serum
    • Anaphylactic shock due to serum
    • Anaphylactoid reaction due to serum
    • Anaphylaxis due to serum
    Type 1 Excludes
    • ABO incompatibility reaction due to transfusion of blood or blood products (T80.3-)
    • allergic reaction or shock NOS (T78.2)
    • anaphylactic reaction or shock NOS (T78.2)
    • anaphylactic reaction or shock due to adverse effect of correct medicinal substance properly administered (T88.6)
    • other serum reaction (T80.6-)
    T80.5-
    )
The following code(s) above T78.2 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to T78.2:
  • S00-T88
    2018 ICD-10-CM Range S00-T88

    Injury, poisoning and certain other consequences of external causes

    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
    Type 1 Excludes
    Use Additional
    • code to identify any retained foreign body, if applicable (Z18.-)
    Injury, poisoning and certain other consequences of external causes
  • T78
    ICD-10-CM Diagnosis Code T78

    Adverse effects, not elsewhere classified

      2016 2017 2018 Non-Billable/Non-Specific Code
    Type 2 Excludes
    • complications of surgical and medical care NEC (T80-T88)
    Adverse effects, not elsewhere classified
Clinical Information Code History
Code annotations containing back-references to T78.2:

Diagnosis Index entries containing back-references to T78.2:

ICD-10-CM Codes Adjacent To T78.2
T78.08XD …… subsequent encounter
T78.08XS …… sequela
T78.09 Anaphylactic reaction due to other food products
T78.09XA …… initial encounter
T78.09XD …… subsequent encounter
T78.09XS …… sequela
T78.1 Other adverse food reactions, not elsewhere classified
T78.1XXA …… initial encounter
T78.1XXD …… subsequent encounter
T78.1XXS …… sequela
T78.2 Anaphylactic shock, unspecified
T78.2XXA …… initial encounter
T78.2XXD …… subsequent encounter
T78.2XXS …… sequela
T78.3 Angioneurotic edema
T78.3XXA …… initial encounter
T78.3XXD …… subsequent encounter
T78.3XXS …… sequela
T78.4 Other and unspecified allergy
T78.40 Allergy, unspecified
T78.40XA …… initial encounter

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.