Excludes1 pair
E03- vs E89.0
E03 and E89.0 are not coded together. ICD-10-CM declares them mutually exclusive with an Excludes1 note — the two conditions are not expected to occur together, so exactly one of them is normally correct for a given encounter. The Official Guidelines carve out one exception: if the two conditions are clearly unrelated to each other, both may be reported.
The official note, declared on E03
postprocedural hypothyroidism (E89.0)
E03
Other hypothyroidism
Not billable
- Chapter 4
- Endocrine, nutritional and metabolic diseases
- Section
- E00-E07
E89.0
Postprocedural hypothyroidism
Billable
- Chapter 4
- Endocrine, nutritional and metabolic diseases
- Section
- E89
Use when the record says
- Postirradiation hypothyroidism
- Postsurgical hypothyroidism
Indexed under
- Absence › thyroid (gland) (acquired)
- Hypothyroidism › postirradiation
- Hypothyroidism › postprocedural
- Hypothyroidism › postsurgical
- Status › thyroidectomy (hypothyroidism)
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