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Home/Diagnosis/ICD-10 Coding for Nut Allergy

ICD-10 Coding for Nut Allergy

Z91.018
T78.05XA

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

Also Known as:
Tree Nut Allergy
Peanut Allergy
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Key Information: ICD-10 Coding for Nut Allergy

Essential facts and insights about ICD-10 Coding for Nut Allergy

Use ICD-10 code Z91.018 for allergy to other foods (tree nuts), ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Allergy to other foods (tree nuts)

Billable Code
Z91.018
Billable

Diagnostic Criteria

  • • Confirmed IgE-mediated reaction to tree nuts

Applicable To

  • • Tree nut allergy

Important Notes

  • • Ensure specific nut type is documented.

Anaphylactic reaction due to tree nuts

Billable Code
T78.05XA
Billable

Diagnostic Criteria

  • • Objective signs (hypotension, stridor, angioedema)
  • • Temporal relationship to exposure
  • • Exclusion of alternative diagnoses

Applicable To

  • • Anaphylaxis due to tree nuts

Important Notes

  • • Sequence before status codes in active treatment encounters.
Ancillary Codes

Additional codes that may be used with this diagnosis

T78.05XA

Anaphylactic reaction due to tree nuts

Use alongside Z91.018 when an anaphylactic reaction occurs.

Frequently Asked Questions

What is the ICD-10 code for nut allergy?

The ICD-10 code for a tree nut allergy is Z91.018, while anaphylactic reactions due to tree nuts are coded as T78.05XA.

How do you document a nut allergy?

Document the specific nut type, reaction characteristics, and diagnostic confirmation such as IgE levels or skin prick tests.

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