Question 1

What is ICD-10 code O09.522?

Accepted Answer

O09.522 is the ICD-10-CM diagnosis code for supervision of elderly multigravida, second trimester. Medical supervision during the second three months of pregnancy for a woman over 35 years old who has been pregnant before. O09.522 sits in the ICD-10-CM chapter for pregnancy, childbirth and the puerperium (o00-o9a), within the section covering supervision of high risk pregnancy (o09).

O09.522 is a billable ICD-10-CM code but does not map to a payment HCC under the CMS-HCC V28, V24, ESRD, or RxHCC risk adjustment models. It can be reported on Medicare Advantage encounter data submissions but it does not contribute to a beneficiary's RAF score and therefore does not affect risk-adjusted payments to the plan.

Verify patient is in second trimester and has documented history of previous pregnancy(ies).

Question 2

Is O09.522 an HCC code?

Accepted Answer

No. O09.522 is a billable ICD-10-CM code but does not map to any payment HCC category under the CMS-HCC V28, V24, ESRD, or RxHCC risk adjustment models. It can still be reported on Medicare Advantage encounter data submissions, but it does not contribute to the beneficiary's Risk Adjustment Factor (RAF) score and therefore does not affect the risk-adjusted capitation payment to the plan. V28 reached 100% phase-in for payment year 2026.

Question 3

Is O09.522 billable?

Accepted Answer

Yes. O09.522 is a billable ICD-10-CM code that can be reported on professional and institutional claims as a primary or secondary diagnosis when the provider documentation supports the specific condition described. Billable codes in ICD-10-CM are coded to the highest level of specificity available for the documented diagnosis. O09.522 is current for fiscal year 2026 and remains in the active CMS ICD-10-CM code set published by the National Center for Health Statistics.

Question 4

Which HCC does O09.522 map to under V28?

Accepted Answer

O09.522 does not map to a CMS-HCC V28 payment category. Check the current CMS-HCC V28 model file for payment year 2026 rather than an older V24 tip sheet.

Question 5

What does O09.522 pay in RAF?

Accepted Answer

O09.522 has no separately stated V28 community RAF weight. If it is not a V28 payment HCC, it adds nothing to a community RAF score.

Question 6

What is the V28 vs V24 difference for O09.522?

Accepted Answer

O09.522 does not map to a payment HCC under either the CMS-HCC V28 risk adjustment model or the older V24 model. V28 reached 100% phase-in for payment year 2026, replacing V24 which was used during the PY2024–PY2025 transition. Because neither community model rewards O09.522 with a risk adjustment factor, it contributes zero to a Medicare Advantage beneficiary's V28/V24 community RAF score in either version. Coders should check whether provider documentation supports a more specific child code that does map to a community payment HCC.

Question 7

What documentation supports O09.522?

Accepted Answer

Verify patient is in second trimester and has documented history of previous pregnancy(ies) Distinguish from primigravida codes by confirming this is not the first pregnancy O09.522 is not a CMS-HCC payment code, so MEAT is not the payment hook. Documentation still has to support the diagnosis if you report it.

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O09.522

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O09.522 ICD-10-CM Code: Supervision of elderly multigravida, second trimester

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O09.522

Is O09.522 an HCC code?

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Child Codes

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Work O09.522 in HCC Buddy