312 F. Supp. 3d 1164
D.N.M.2018Background
- New Mexico Health Connections (NMHC), a CO‑OP insurer, sued HHS under the APA challenging HHS's risk‑adjustment methodology used in 2014–2018, principally the use of a statewide average premium in the transfer formula and related modeling choices.
- NMHC incurred large risk‑adjustment charges in 2014–2015 and contends the formula overstated charges for low‑cost/innovative carriers and disfavors bronze plans.
- HHS administers risk adjustment for 49 states; its formula produces individual risk scores (age/sex + HCCs), computes plan average risk, then multiplies relative risk by a State average premium (with later adjustments) to produce transfers.
- NMHC argued (1) the statute requires transfers be based solely on actuarial risk and not on statewide premiums, (2) the statewide premium choice is arbitrary and capricious, (3) HHS underpredicts costs for non‑HCC enrollees, and (4) HHS improperly treated partial‑year enrollees and excluded prescription data.
- HHS defended the statewide premium as administratively predictable, less distortive, and necessary to achieve budget neutrality; it also defended its HCC methodology and incremental model changes (partial‑year factors, limited pharmacy data in later years).
- The Court reviewed the record under the APA and concluded the APA waives sovereign immunity for NMHC’s non‑monetary claims; it vacated the statewide‑average‑premium rules (2014–2018) as arbitrary and capricious, upheld other modeling choices, and remanded to the agency.
Issues
| Issue | Plaintiff's Argument | Defendant's Argument | Held |
|---|---|---|---|
| APA waiver / jurisdiction | NMHC seeks injunctive/declaratory relief under APA; jurisdiction is proper and relief not primarily monetary. | HHS: claim seeks monetary relief for past transfers and belongs in Court of Federal Claims. | APA waives sovereign immunity for NMHC's claims; district court has jurisdiction over prospective relief and rule invalidation. |
| Use of statewide average premium in transfer formula | Use of State average premium departs from statute (transfers must be based solely on actuarial risk); inflates charges for efficient/small issuers; HHS must use issuer's own premium or make retroactive corrections. | HHS: statute is ambiguous; use of State average is reasonable—stabilizes transfers, reduces distortions/gaming, and enables budget neutrality. | The methodology is not contrary to law (statute ambiguous), but HHS's stated record rationale (reliance on an erroneous view that statute required budget neutrality) makes the State‑average approach arbitrary and capricious; vacated and remanded for further proceedings. |
| Predictive model for HCC vs. non‑HCC enrollees (estimation bias) | Model underpredicts costs for non‑HCC (healthier) enrollees and thus penalizes plans that improve health; HHS ignored proposed corrections. | HHS: model targets predictable systematic risk (HCCs); agency considered alternatives and incrementally refined model (preventive services, further evaluation). | Court upheld HHS's modeling decisions as not arbitrary/capricious; agency considered tradeoffs and gave reasoned explanations for keeping or studying proposed adjustments. |
| Partial‑year enrollees & prescription drug data | Excluding prescription data and insufficiently accounting for partial enrollment leads to undercounted HCCs and mispriced risk; changes should be applied retroactively. | HHS: considered pros/cons, explained methods for partial‑year handling and incentives against using drug data; later rules adopted partial‑year adjustments and limited pharmacy use prospectively. | Court found HHS adequately considered these issues; decisions were not arbitrary or capricious and prospective model changes were permissible; retroactive relief not required. |
Key Cases Cited
- Olenhouse v. Commodity Credit Corp., 42 F.3d 1560 (10th Cir. 1994) (district‑court review of agency action should be processed as an APA appeal and governed by appellate procedures)
- Chevron U.S.A., Inc. v. Natural Resources Defense Council, 467 U.S. 837 (1984) (two‑step deference framework for agency statutory interpretation)
- Motor Vehicle Mfrs. Ass'n v. State Farm Mut. Auto. Ins. Co., 463 U.S. 29 (1983) (arbitrary and capricious standard requires reasoned explanation and consideration of relevant factors)
- Encino Motorcars, LLC v. Navarro, 136 S. Ct. 2117 (2016) (agencies must give adequate reasons for decisions; change is permissible with reasoned explanation)
- Bowen v. Massachusetts, 487 U.S. 879 (1988) (distinguishing monetary damages from equitable/mandatory relief under APA)
- National Federation of Independent Business v. Sebelius, 567 U.S. 519 (2012) (context on ACA objectives and congressional design)