2019/2020

  1. ICD-10-CM Codes
    2. ›
  2. S00-T88 Injury, poisoning and certain other consequences of external causes
    3. ›
  3. T66-T78 Other and unspecified effects of external causes
    4. ›
  4. T78- Adverse effects, not elsewhere classified
    5. ›

2020 ICD-10-CM Diagnosis Code T78.3XXS

Angioneurotic edema, sequela

    2016 2017 2018 2019 2020 Billable/Specific Code POA Exempt
  • T78.3XXS is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2020 edition of ICD-10-CM T78.3XXS became effective on October 1, 2019.
  • This is the American ICD-10-CM version of T78.3XXS - other international versions of ICD-10 T78.3XXS may differ.
The following code(s) above T78.3XXS 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 T78.3XXS:
  • S00-T88
    2020 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 2019 2020 Non-Billable/Non-Specific Code
    Type 2 Excludes
    • complications of surgical and medical care NEC (T80-T88)
    Adverse effects, not elsewhere classified
  • T78.3
    ICD-10-CM Diagnosis Code T78.3

    Angioneurotic edema

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Applicable To
    • Allergic angioedema
    • Giant urticaria
    • Quincke's edema
    Type 1 Excludes
    Angioneurotic edema
Present On Admission
POA Help
"Present On Admission" is defined as present at the time the order for inpatient admission occurs — conditions that develop during an outpatient encounter, including emergency department, observation, or outpatient surgery, are considered POA.
  • T78.3XXS is considered exempt from POA reporting.
ICD-10-CM T78.3XXS is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 922 Other injury, poisoning and toxic effect diagnoses with mcc
  • 923 Other injury, poisoning and toxic effect diagnoses without mcc

Convert T78.3XXS to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
ICD-10-CM Codes Adjacent To T78.3XXS
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
T78.40XD …… subsequent encounter
T78.40XS …… sequela
T78.41 Arthus phenomenon
T78.41XA …… initial encounter
T78.41XD …… subsequent encounter
T78.41XS …… sequela
T78.49 Other allergy

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

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