Blue Cross ties $942 million to hospital AI coding; Oz says AI will raise costs first; clinicians catch 16% of AI hallucinations; Cigna and OpenAI start with cancer
THE SHORT READ
Hospitals' AI coding tools added $942 million to Blue Cross Blue Shield plans' inpatient costs from early 2023 through 2025 without matching changes in treatment, the Blue Cross Blue Shield Association said Sept. 24.
The association found that the share of inpatient claims coded as medically complex rose from about 37% to about 40% while hospitals with the most complex coding delivered similar or less intensive care, Fierce Healthcare reported. The American Hospital Association said inpatients are older and sicker. The same day, Centers for Medicare & Medicaid Services Administrator Dr. Mehmet Oz told an Oracle conference in Orlando that AI will be "inflationary" in the short term because it will "turbocharge" billing systems. A multicenter study in npj Digital Medicine found that junior clinicians identified 15.8% of hallucinations in GPT-4o outputs.
Two announcements this week aimed AI at cancer care. The Cigna Group and OpenAI said their first joint tools will serve oncology nurses and case managers, and Oracle Health announced an oncology electronic health record with AI agents but gave no launch date. Cancer was the most-searched disease area on Medscape's AI search tool in all nine countries the company studied in the first half of 2026, according to Medscape data published through Stacker.
THE DETAILS
- Money Sept 24, 2026The Blue Cross Blue Shield Association, whose 31 independent plans cover more than 100 million people, attributed $653 million of the total to secondary diagnoses that moved about 55,000 additional cases into higher-paying diagnosis-related groups, at an average of about $11,000 per case, Fierce Healthcare reported. Hospitals with the highest coding complexity showed similar or lower ICU use, transfusion, reoperation and length of stay than peers; top-quartile hospitals diagnosed anemia 38% more often than peers but transfused less, 16.9% against 19.3%, according to Becker's Hospital Review. "The likelihood that this is technology-enabled upcoding is higher, in my view," said Dr. Razia Hashmi, the association's vice president of clinical affairs. The American Hospital Association said inpatients are older and sicker and cited a roughly 5% rise in case-mix index from 2019 to 2024, Medical Daily reported. The analysis is the insurers' own and names ambient scribes among the tools that surface secondary diagnoses, PYMNTS reported. Health system leaders told Becker's that payers have automated claim review and denials at a scale hospitals cannot match.
- Regulation Sept 24, 2026"Short term, AI is going to be inflationary because it's going to turbocharge the ability of the current billing systems to work more effectively," Centers for Medicare & Medicaid Services Administrator Dr. Mehmet Oz said at Oracle's health and life sciences summit in Orlando, Healthcare Dive reported Sept. 24. Oz said a shift from fee-for-service payment toward accountable care organizations, which are paid on outcomes, would reward using AI for clinical efficiency rather than billing, according to the report. "I guarantee you we will lose lives if we don't use AI in the day-to-day trench warfare of fighting disease in America," he said.Source: Healthcare Dive
- Evidence Sept 24, 2026The cross-sectional study, published Sept. 24 in npj Digital Medicine by Yunyun Zhang and colleagues, asked junior clinicians at several centers to review GPT-4o output in simulated clinical scenarios. Detection did not improve as the clinical risk of a scenario rose, and most of the variation came from differences between clinicians rather than between scenarios, the authors said. They wrote that current safeguards rely on a "clinician-in-the-loop" model that "assumes that clinicians can reliably identify and correct these hallucinations," and called for structured human-AI workflows and tiered clinical certification. The study used simulated cases, not live patient care.Source: npj Digital Medicine
- Deployment Sept 23, 2026The Cigna Group said Sept. 23 that OpenAI's reasoning models will give oncology nurses and case managers at Cigna Healthcare and Accredo Specialty Pharmacy a single view of clinical, pharmacy, behavioral health and benefits data, along with patient-reported side effects and questions between physician visits. Clinicians keep responsibility for care decisions, and "no patient or member data is maintained by OpenAI or used by OpenAI for model training," the company said. The announcement gave no launch date, patient count or financial terms, Fierce Healthcare reported.Sources: The Cigna Group, Fierce Healthcare
- Deployment Sept 23, 2026Oracle said Sept. 23 at its Orlando summit that the planned system will combine cancer-care timelines, nurse navigator worklists, precision oncology insights drawn from genomic, radiology, pathology, lab and pharmacy data, and chemotherapy and immunotherapy ordering with dose tracking. "Oracle Health Oncology EHR is designed to bring the patient's story together and provide personalized treatment recommendations," said Seema Verma, who leads Oracle Health and Life Sciences. The release describes the capabilities as "general product direction" and "not a commitment to deliver," and the announcement named no customers or launch date, Health System CIO reported.Sources: Oracle, Health System CIO
- Deployment Sept 24, 2026The Swedish company, co-founded by Spotify's Daniel Ek, opened in SoHo on Sept. 24 with a 60-minute visit: a 30-minute scan using visual and thermal cameras for a 360-degree skin exam, cardiovascular and body-composition measures and blood tests covering more than 50 biomarkers, then 30 minutes with a clinician, the company said. Members needing further care are referred to partners including Columbia University Irving Medical Center, Schweiger Dermatology and Mount Sinai Health System. Neko said more than 25,000 New Yorkers joined its waitlist, more than 100,000 members have been scanned in Sweden and the United Kingdom, and it raised $700 million in a Series C round led by Lightspeed Venture Partners; it plans clinics in Miami, Washington and San Francisco. The figures are the company's own, and Fortune described the exam as AI-powered.Sources: Neko Health, Fortune
- Deployment Sept 23, 2026August Care includes unlimited AI health chat, one telehealth visit a month with additional visits at $19, next-day lab access, prescriptions and a year of follow-up messaging, Fierce Healthcare reported Sept. 23. A licensed physician makes every prescription, note and clinical decision, according to the report, and former New York State Health Commissioner Dr. Nirav Shah is the company's fractional chief medical officer. The company says it has treated 100,000 patients in the United States, raised $3 million from Accel and that its models score 100% on the U.S. Medical Licensing Examination; those figures are the company's own, and no peer-reviewed results have been published. The price matches Doctronic's $39 video visit.
- Workforce Sept 24, 2026The system's AI intake service, Care Connect, handled 36,000 patients in its first year and now sees about 150 a day, and "77% of the patients who access this see the doctor the day they accessed it," Chief Operating Officer Dr. Ron Walls said at the World Medical Innovation Forum in Boston on Sept. 22 and 23, Becker's Hospital Review reported. At a Sept. 23 panel, K Health CEO Allon Bloch said hospitals "have to disclose today," while Dr. Rebecca Mishuris, the system's chief health information officer, said disclosure has "no right answer" and noted that patients are not asked to consent when an algorithm reads an ECG, according to Becker's. Separately, Brigham and Women's Hospital nurses voted 2,986 to 215 on Sept. 24 to authorize an open-ended strike; no date has been set, NBC Boston reported.