Massachusetts Files Suit Alleging UnitedHealth Unit Overbilled Medicaid by Inflating Senior Patients' Conditions

Attorney General says inaccurate diagnostic coding in Senior Care Options plan led to more than $100 million in overpayments; UnitedHealth calls complaint 'meritless'

By Sofia Navarro UNH

Massachusetts Attorney General Andrea Joy Campbell has sued UnitedHealthcare Insurance, operating as UnitedHealthcare Community Plans of Massachusetts, alleging the insurer overstated the severity of illnesses among MassHealth members in its Senior Care Options plan to secure higher payments from the state's Medicaid program. The suit claims inaccurate diagnoses were submitted for patients aged 65 and older from 2015 through 2025, resulting in over $100 million in alleged improper payments. UnitedHealth has labeled the complaint 'meritless' and the company's shares fell 1.4% in afternoon trading.

Massachusetts Files Suit Alleging UnitedHealth Unit Overbilled Medicaid by Inflating Senior Patients' Conditions

UNH

Key Points

Massachusetts Attorney General Andrea Joy Campbell sued UnitedHealthcare Insurance (UnitedHealthcare Community Plans of Massachusetts), alleging more than $100 million in improper Medicaid payments tied to inflated diagnostic coding for seniors in the Senior Care Options plan.
The complaint covers diagnoses submitted for members aged 65 and older from 2015 through 2025 and alleges misclassification into Level 2 (behavioral health/substance use) and Level 3 (most serious conditions) tiers when ineligible.
UnitedHealth has called the complaint 'meritless' and the company's shares fell 1.4% to $377.34 in afternoon trading; the case could have implications for the healthcare insurance and Medicaid managed-care sectors.

Overview

Massachusetts has initiated legal action against a unit of UnitedHealth, accusing the insurer of manipulating diagnostic coding for older MassHealth enrollees to receive larger payments. The complaint, filed on Friday by Attorney General Andrea Joy Campbell, targets UnitedHealthcare Insurance as it operates under UnitedHealthcare Community Plans of Massachusetts and focuses on members of the Senior Care Options (SCO) plan.

Allegations in the complaint

The Attorney General's Office asserts that, between 2015 and 2025, UnitedHealthcare submitted inaccurate or inflated diagnoses for MassHealth members aged 65 and older in order to obtain higher reimbursement rates from the state's Medicaid program. The suit says these actions led to more than $100 million in alleged improper payments.

Specifically, the complaint alleges two patterns of misclassification:

Members were reported as Level 2 - the tier the state designates for behavioral health or substance use disorders - by citing conditions such as depression or anxiety even when the members did not have those diagnoses or were not receiving treatment for them.
Members were classified as Level 3 - the highest severity tier - despite not meeting eligibility criteria for that designation.

The AGO further alleges that internal reviews conducted in 2018 and 2019 identified these classification errors. According to the complaint, UnitedHealthcare did not report the overpayments to MassHealth or repay the funds before downgrading the affected members' recorded health statuses.

Company response and market reaction

UnitedHealth has characterized the complaint as "meritless." In afternoon trading on the day the lawsuit was filed, the company's shares slipped 1.4% to $377.34.

Context and implications

The lawsuit centers on coding and payment practices within a Medicaid managed-care arrangement for seniors. The Attorney General's filing ties the alleged misreporting of member health status directly to higher payments from MassHealth and to the insurer's growth strategy for its SCO population.

This article presents the facts asserted in the Massachusetts Attorney General's complaint and the company's public response. It does not draw conclusions beyond those claims.

Risks

Litigation risk: The lawsuit could lead to legal costs, potential repayments, or settlements if the court or regulators determine the allegations have merit - this affects the health insurance sector and Medicaid program finances.
Regulatory and reimbursement uncertainty: Alleged misclassification of member health status raises questions about audit processes and reimbursement integrity within Medicaid managed-care plans, potentially impacting state budgets and insurer revenue recognition.
Reputational and operational risk: Findings that internal reviews in 2018 and 2019 identified errors but were not reported could lead to intensified regulatory scrutiny and operational changes for managed-care administration, influencing insurers and providers involved with Medicaid populations.

Menu

Massachusetts Files Suit Alleging UnitedHealth Unit Overbilled Medicaid by Inflating Senior Patients' Conditions

Key Points

Risks

More from Stock Markets