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Home/Diagnosis/ICD-10 Coding for Anaphylaxis

ICD-10 Coding for Anaphylaxis

T78.2XXA
T80.52XA

Complete ICD-10-CM coding and documentation guide for icd-10 coding for anaphylaxis includes clinical validation requirements, medical necessity guidelines, and coding policies.

Also Known as:
Anaphylactic Shock
Severe Allergic Reaction
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Key Information: ICD-10 Coding for Anaphylaxis

Essential facts and insights about ICD-10 Coding for Anaphylaxis

Use ICD-10 code T78.2XXA for anaphylactic shock, unspecified, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Anaphylactic shock, unspecified

Billable Code
T78.2XXA
Billable

Diagnostic Criteria

clinical:
  • • Acute onset with multi-system involvement
documentation:
  • • Lack of specific trigger documentation

Applicable To

  • • Anaphylactic shock NOS

Important Notes

  • • Ensure documentation specifies the systems involved and any known triggers.

Anaphylactic reaction due to serum

Billable Code
T80.52XA
Billable

Diagnostic Criteria

clinical:
  • • Temporal relationship to vaccine administration
  • • Severe symptoms such as hypotension or laryngeal edema

Applicable To

  • • Anaphylactic reaction to vaccines

Important Notes

  • • Ensure proper sequencing with vaccine codes.
Ancillary Codes

Additional codes that may be used with this diagnosis

Z91.0

Allergy status

Use to specify known allergies, such as Z91.011 for peanut allergy.

Z23

Encounter for immunization

Use alongside T80.52XA to indicate vaccine administration.

Frequently Asked Questions

What is the ICD-10 code for unspecified anaphylactic shock?

The ICD-10 code for unspecified anaphylactic shock is T78.2XXA, used when the trigger is unknown.

How do you code anaphylaxis due to a vaccine?

For anaphylaxis due to a vaccine, use T80.52XA and sequence with the vaccine code, such as Z23 for immunization.

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