What is the ICD-10 code for gluten allergy?

The ICD-10 code for a confirmed IgE-mediated gluten allergy is Z91.038, while non-celiac gluten sensitivity is coded as K90.41.

How is celiac disease coded in ICD-10?

Celiac disease is coded as K90.0 in ICD-10, requiring positive serology and biopsy for confirmation.

ICD-10 Coding for Gluten Allergy(K90.0, K90.41, K90.49)

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Comprehensive guide on ICD-10 coding for gluten allergy, including celiac disease and non-celiac gluten sensitivity. Learn about documentation requirements and coding pitfalls.

Also known as:

Non-Celiac Gluten SensitivityGluten Intolerance

Related ICD-10 Code Ranges

Complete code families applicable to Gluten Allergy

K00-K95Primary Range

Diseases of the digestive system

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Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

Code	Description	When to Use	Key Documentation
K90.0	Celiac disease	Use when celiac disease is confirmed by serology and biopsy.	Positive IgA anti-tTG (≥10 U/mL) Marsh Type 3 villous atrophy on duodenal biopsy
K90.41	Non-celiac gluten sensitivity	Use when celiac disease is excluded and symptoms improve on a gluten-free diet.	Negative celiac serology (IgA anti-tTG <4 U/mL) Symptom improvement on gluten-free diet
Z91.038	Allergy to other foods	Use when an IgE-mediated allergy to gluten is confirmed.	IgE-positive wheat/gluten allergy via skin prick test or serum IgE

Primary ICD-10-CM Codes

Celiac disease

K90.0Billable

Differential Codes

Alternative codes to consider when ruling out similar conditions

Non-celiac gluten sensitivityK90.41

Celiac diseaseK90.0

Documentation & Coding Risks

Avoid these common issues when documenting Gluten Allergy.

Documenting gluten sensitivity as gluten allergy without testing.

Impact

Clinical: Inaccurate allergy records affecting patient management., Regulatory: Non-compliance with allergy documentation standards., Financial: Potential claim denials due to lack of evidence.

Mitigation

Verify IgE test results before documenting allergy., Educate providers on the difference between allergy and sensitivity.

Using K90.41 for celiac disease.

Impact

Reimbursement: Incorrect DRG assignment leading to potential underpayment., Compliance: Non-compliance with coding guidelines., Data Quality: Inaccurate clinical data affecting patient care.

Mitigation

Confirm negative serology and biopsy before assigning K90.41.

Coding gluten allergy as Z91.038 without IgE confirmation.

Impact

Reimbursement: Potential claim denial due to lack of evidence., Compliance: Violation of coding standards., Data Quality: Misleading allergy records.

Mitigation

Query provider for IgE test results before coding.

Incorrect coding of gluten-related disorders

Impact

Misclassification of gluten sensitivity as celiac disease or allergy.

Mitigation

Regular training on gluten-related disorder coding and documentation.

Frequently Asked Questions

Documentation requirements, coding pitfalls and FAQs for conditions coded with K90.0.

Primary Code

K90.0

Celiac disease

Quick Navigation

ICD-10 codes7

Coding risks4

FAQs2

ICD-10 Coding for Gluten Allergy(K90.0, K90.41, K90.49)

Documentation & Coding Risks

Frequently Asked Questions

What is the ICD-10 code for gluten allergy?

How is celiac disease coded in ICD-10?

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