ICD-10-CM › S00-T88 › T66-T78 › T78 Adverse effects, not elsewhere classified › T78.2
Anaphylactic shock, unspecified
Not billableICD-10-CM diagnosis code.
This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.
Submit one of these 3 more specific codes instead:
- T78.2XXA Anaphylactic shock, unspecified, initial encounter
- T78.2XXD Anaphylactic shock, unspecified, subsequent encounter
- T78.2XXS Anaphylactic shock, unspecified, sequela
This code requires a seventh character. See the rule below.
What has happened to this code
Every change the publisher made, from 2014 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.
- FY2014 Added to the draft code set draft Anaphylactic shock, unspecified
Official coding rules
Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.
Inherited from T78 Adverse effects, not elsewhere classified
Seventh character required
- The appropriate 7th character is to be added to each code from category T78
Excludes2 - not included here
- complications of surgical and medical care NEC (T80-T88)
Inherited from the T66-T78 section Other and unspecified effects of external causes (T66-T78)
Code also
- , if applicable, place of occurrence, such as:
- highway rest stop (Y92.523)
- school (private) (public) (state) as the place of occurrence of the external cause (Y92.21-)
- service areas as the place of occurrence of the external cause (Y92.52-)
- single-family non-institutional (private) house as the place of occurrence of the external cause (Y92.01-)
- transport vehicle as the place of occurrence of the external cause (Y92.81-)
How CDC's index refers to this code
Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.
- Anaphylaxis
- Rash > serum
- Neuritis > serum
- Serum > neuritis
- Serum > rash NEC
- Shock > allergic
- Serum > arthritis
- Serum > urticaria
- Urticaria > serum
- Protein > sickness
- Sickness > protein
- Disorder > allergic
- Hypersusceptibility
- Reaction > allergic
- Serum > disease NEC
- Intoxication > serum
- Serum > intoxication
- Serum > reaction NEC
- Serum > sickness NEC
- Sickness > serum NEC
- Serum > poisoning NEC
- Shock > anaphylactoid
- Sensitive, sensitivity
- Reaction > anaphylactic
- Reaction > anaphylactoid
- Allergy, allergic > serum
- Urticaria > due to > serum
- Effect, adverse > serum NEC
- Encephalopathy > in > serum
- Disease, diseased > serum NEC
- Anaphylactoid shock or reaction
- Reaction > serum > anaphylactic
- Anaphylactic > shock or reaction
- Serum > allergy, allergic reaction
- Serum > complication or reaction NEC
- Complication > infusion > serum reaction
- Serum > allergy, allergic reaction > shock
- Hypersensitive, hypersensitiveness, hypersensitivity
- Complication > infusion > serum reaction > anaphylactic shock
- Arthritis, arthritic > due to or associated with > serum sickness
Showing 40 of 43 index phrases.
Codes in the same group
| Code | Description | Status |
|---|---|---|
| T78.0 | Anaphylactic reaction due to food | Not billable |
| T78.1 | Other adverse food reactions, not elsewhere classified | Not billable |
| T78.3 | Angioneurotic edema | Not billable |
| T78.4 | Other and unspecified allergy | Not billable |
| T78.8 | Other adverse effects, not elsewhere classified | Not billable |