Find comprehensive information on nut allergy diagnosis, including clinical documentation, medical coding (ICD-10-CM Z91.01, ICD-10-CM T78.1XXA), symptoms, testing (skin prick test, blood test, oral food challenge), and management. Learn about anaphylaxis, epinephrine administration, and best practices for healthcare professionals documenting nut allergies in patient records. This resource covers relevant terminology for accurate coding and diagnosis of peanut allergy, tree nut allergy, and other nut-related allergic reactions for optimal patient care.
Also known as
Allergy to nuts
Allergic reaction due to nuts, initial encounter.
Allergy to nuts
Allergic reaction due to nuts, subsequent encounter.
Allergy to nuts
Allergic reaction due to nuts, sequela.
Personal history of allergy to nuts
Patient has a history of nut allergy, but no current reaction.
Follow this step-by-step guide to choose the correct ICD-10 code.
Is the nut allergy confirmed?
When to use each related code
| Description |
|---|
| Nut allergy |
| Food allergy NOS |
| Oral allergy syndrome |
Using unspecified allergy codes (e.g., Z91.010) when a more specific nut allergy code is documented leads to inaccurate data and lost revenue.
Failure to document the specific nut allergen (e.g., peanut, tree nut) results in coding errors and impacts patient safety and quality metrics.
Coding nut allergy based on patient-reported history without proper diagnostic testing may lead to overcoding and compliance issues.
Patient presents with suspected nut allergy. Symptoms reported include urticaria, pruritus, angioedema, andor respiratory distress following ingestion or exposure to tree nuts or peanuts. Onset of symptoms ranged from immediate to within two hours of exposure. Severity of reaction varies from mild skin manifestations to severe anaphylaxis. Patient denies prior diagnosis of nut allergy but reports a family history of atopic conditions, specifically eczema and seasonal allergies. Physical exam reveals blanching erythematous wheals consistent with urticaria. Differential diagnosis includes other food allergies, drug reactions, and insect stings. Allergy testing including skin prick testing andor serum specific IgE testing for peanut and tree nut allergens is recommended to confirm the diagnosis. Patient education provided on nut avoidance, ingredient label reading, and emergency management of allergic reactions including the use of epinephrine auto-injectors. Prescribed epinephrine auto-injector with instructions on proper administration and follow-up with an allergist for comprehensive allergy evaluation and management. ICD-10 code Z91.01 (Personal history of allergy to nuts) or T78.10XA (initial encounter for anaphylactic reaction due to food, initial encounter) if applicable. CPT codes for allergy testing and evaluation may include 95004, 95024, and 99213-99215 depending on complexity of the visit. Patient instructed to return immediately for any recurrence or worsening of symptoms.