E73 — Lactose intolerance
Is E73 billable?
No — E73 is a non-billable header code. E73 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 4 billable codes beneath E73.
E73 at a glance
| Code | E73 |
|---|---|
| Description | Lactose intolerance |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes1 — never code together — inherited from Chapter 4
The conditions below can never be reported together with E73 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- transitory endocrine and metabolic disorders specific to newborn (P70-P74)
Excludes1 — never code together — inherited from E70-E88
The conditions below can never be reported together with E73 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Excludes2 — not included here — inherited from E70-E88
The conditions below are not part of E73, but a patient may have both at the same time. When documentation supports it, E73 and the excluded code may both be reported.
- Ehlers-Danlos syndromes (Q79.6-)
What codes fall under E73? (4)
How long has E73 existed?
E73 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.