E73 Lactose intolerance
ICD-10-CM category E73 sits in Chapter 4 (Endocrine, nutritional and metabolic diseases, E00-E89). It contains 4 billable codes for FY2027, effective October 1, 2026 to September 30, 2027. Always code to the most specific code available: a code with more characters that describes the diagnosis more precisely takes priority over a shorter one.
Billable codes in E73
| Code | Description |
|---|---|
E73.0 | Congenital lactase deficiency |
E73.1 | Secondary lactase deficiency |
E73.8 | Other lactose intolerance |
E73.9 | Lactose intolerance, unspecified |
Search within ICD-10-CM for E73 and related codes
Advertisement