H33.2 vs H35
H33.2 and H35 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 H33.2
central serous chorioretinopathy (H35.71-)
H33.2
Serous retinal detachment
Not billable
- Chapter 7
- Diseases of the eye and adnexa
- Section
- H30-H36
Use when the record says
- Retinal detachment NOS
- Retinal detachment without retinal break
Indexed under
- Detachment › retina
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