E28.8 — Other ovarian dysfunction
E28.8 is a billable, specific ICD-10-CM code for other ovarian dysfunction. It is valid for submission on a claim.
Excludes1 — never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
- postprocedural ovarian failure (E89.4-)
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Ovarian hyperfunction NOS
Risk adjustment
E28.8 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
E28.8 is named in 1 Medicare coverage policy — 1 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A53026Billing and Coding: Bariatric Surgery Coverage
How E28.8 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to E28.8.
- Hyperovarism
- Hyperthecosis ovary
- Amenorrhea›hyperhormonal
- Hyperfunction›ovarian
- Hypergonadism›ovarian
- Dysfunction›ovary›specified NEC
Related codes at this level
Codes that share E28. If E28.8 is not quite right, the correct code is usually one of these.
Questions about E28.8
- Is E28.8 a billable ICD-10-CM code?
- Yes. E28.8 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does E28.8 sit in the tabular list?
- Endocrine, nutritional and metabolic diseases (E00-E89), in the block Disorders of other endocrine glands (E20-E35).
- What cannot be coded together with E28.8?
- E28.8 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.