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Home/Diagnosis/ICD-10 Coding for Gluten Allergy

ICD-10 Coding for Gluten Allergy

K90.0
K90.41
Z91.038

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

Also Known as:
Non-Celiac Gluten Sensitivity
Gluten Intolerance
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Key Information: ICD-10 Coding for Gluten Allergy

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

Use ICD-10 code K90.0 for celiac disease, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Celiac disease

Billable Code
K90.0
Billable

Diagnostic Criteria

  • • Positive IgA anti-tTG (≥10 U/mL)
  • • Marsh Type 3 villous atrophy on duodenal biopsy

Applicable To

  • • Gluten-sensitive enteropathy

Important Notes

  • • Ensure documentation includes serology and biopsy results.

Non-celiac gluten sensitivity

Billable Code
K90.41
Billable

Diagnostic Criteria

  • • Negative celiac serology (IgA anti-tTG <4 U/mL)
  • • Symptom improvement on gluten-free diet

Applicable To

  • • Gluten intolerance without celiac disease

Important Notes

  • • Document negative serology and symptom resolution.

Allergy to other foods

Billable Code
Z91.038
Billable

Diagnostic Criteria

  • • IgE-positive wheat/gluten allergy via skin prick test or serum IgE

Applicable To

  • • IgE-mediated gluten allergy

Important Notes

  • • Ensure IgE test results are documented.
Ancillary Codes

Additional codes that may be used with this diagnosis

L13.0

Dermatitis herpetiformis

Use when dermatitis herpetiformis is present alongside celiac disease.

Frequently Asked Questions

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.

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