D81.818: Other biotin-dependent carboxylase deficiency
D81.818 is the billable ICD-10-CM diagnosis code for Other biotin-dependent carboxylase deficiency. It is a fully specified code, so it can be reported on a claim (subject to clinical documentation and your payer's rules).
Frequently asked questions
What is ICD-10-CM code D81.818?
D81.818 is the ICD-10-CM diagnosis code for Other biotin-dependent carboxylase deficiency. It belongs to category D81 (Combined immunodeficiencies).
Is D81.818 a billable code?
Yes. D81.818 is a billable, fully specified ICD-10-CM code, so it can be used on a claim (subject to documentation and payer rules).
What category does D81.818 belong to?
D81.818 is part of ICD-10-CM category D81 — Combined immunodeficiencies, which has 34 billable codes.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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