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E73.1

✓ Billable

Secondary lactase deficiency

Endocrine, nutritional and metabolic diseases (E00-E89)

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✅ No additional coding notes for E73.1

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Code Information

CodeE73.1
BillableYes
ParentE73
CategoryEndocrine, nutritional and metabolic diseases (E00-E89)
Excludes10 rule(s)
Excludes20 note(s)

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)