E55 vs E64.3
E55 and E64.3 can never be reported together. ICD-10-CM declares them mutually exclusive with an Excludes1 note, meaning the two conditions cannot occur in the same patient — so exactly one of them is correct for any given encounter.
The official note, declared on E55
sequelae of rickets (E64.3)
E55
Vitamin D deficiency
Not billable
- Chapter 4
- Endocrine, nutritional and metabolic diseases
- Section
- E50-E64
E64.3
Sequelae of rickets
Billable
- Chapter 4
- Endocrine, nutritional and metabolic diseases
- Section
- E50-E64
Indexed under
- Bowleg › rachitic (s) (acquired)
- Craniotabes › rachitic (cause unknown)
- Deformity › rachitic, old or healed
- Genu › rachitic
- Hammer toeNEC › sequelaeof rickets (acquired)
Excludes1 is not always absolute: where two conditions covered by the note are genuinely unrelated, CMS guidance permits reporting both. Document the reasoning rather than assuming it. More on Excludes1 vs Excludes2 · FY2027