Documentation that does not match the bill

Therapists in SNFs, ALFs, memory care, and home health perform fall risk assessments every day. The bill goes out. Weeks later, the denial comes back. The reasons are repetitive and well-documented:

• OASIS inconsistency between M1840 (toilet transferring), M1850 (transferring), M1860 (ambulation) and the GG-mobility items used for case-mix and quality reporting.
• Standardized tests (TUG, Tinetti, Berg) recorded as a single score, with no objective gait parameters that justify the complexity level billed.
• Re-evaluation (97164, 97168) billed without measurable change vs. baseline.
• Therapeutic activity codes (97110, 97112, 97116, 97530) billed without documented impairment that ties the intervention to the diagnosis.
• RTM codes (98977, 98980, 98981) billed without device-generated, time-stamped data the payer can reproduce.

The denial is rarely about the care. It is about the gap between what the therapist saw and what the chart can prove. LINDERA closes that gap.

A single therapist, one phone, one patient, no markers, no wearables.

1. The therapist opens the app, selects the resident or patient, and records a short walk (typically 4 to 6 meters) plus a sit-to-stand and a Timed Up and Go.
2. The AI gait engine extracts the 6 relevant spatiotemporal and kinematic parameters from the video — cadence, step length and symmetry, stride variability.
3. The system maps these parameters to a quantified fall risk score, a clinical interpretation, and a structured record that includes ICD-10 codes (R26.x, R29.6, Z91.81), CPT-eligible findings, and OASIS-aligned mobility items where applicable.
4. The record is exportable to the EHR, the OASIS, and the billing system as the source of truth.

The therapist keeps clinical judgment. LINDERA provides the objective layer underneath it.

The LINDERA gait analysis algorithm has been validated against gold-standard motion-capture and against established clinical fall-risk instruments. The core peer-reviewed reference is the JMIR Aging study published in 2024, which reports the system's diagnostic performance and feasibility in an older-adult population.

What 100% clinically validated means in practice for a primary care provider:

• Every gait parameter LINDERA reports has a published validation against an accepted reference standard.
• The fall risk score has been benchmarked against fall-history outcomes in the target population.
• The system is CE-marked as a medical device in the EU and is built to a HIPAA-ready standard for US deployment, with the documentation trail US payers and auditors expect.

Before LINDERA: a therapist performs a fall risk assessment, records a TUG time, writes a narrative note, and hopes the documentation survives audit.

With LINDERA:

• The assessment takes 120-180 seconds of video plus a few taps.
• The quantitative output prints to the chart with the parameters the auditor will ask for.
• The re-evaluation in 30 days produces a measurable delta, not a narrative claim.
• The therapist's clinical note references objective numbers, not subjective impressions.

Throughput goes up because the clinician spends less time documenting and more time treating. Denial rate goes down because the documentation now matches the bill.

Skilled Nursing Facility (SNF) — Universal admission screening within 48 hours, weekly therapy progress documentation, MDS Section GG support, Part A case-mix defense.

Home Health — OASIS Start of Care and Recertification, M1840 / M1850 / M1860 / GG-item reconciliation, episode-level outcome documentation for value-based purchasing.

Assisted Living — Move-in baseline, periodic reassessment, family-facing trend reports, escalation trigger to higher level of care before a fall event forces it.

Memory Care — Adapted protocol for residents who cannot follow multi-step verbal instructions; gait pattern stability tracking that detects decline earlier than ADL-based observation alone.

Outpatient and primary care — Annual Wellness Visit fall risk requirement (HCC G8907 / Z91.81), cognitive-motor dual-task screening, RTM enrollment for patients with documented mobility impairment.

• Audit readiness. Time-stamped, video-anchored, payer-mapped — the kind of trail that ends an audit fast.

Most therapy partners see net-positive economics inside the first quarter.

• Wearable sensors require distribution, charging, compliance, and re-issue. Force-plate and mat systems are capital equipment in one room. Manual standardized tests do not produce defensible objective data. EHR-native templates document the visit but generate no new measurement.

• LINDERA is a smartphone app that any therapist can run on the patient in the patient's own room, with output that flows into the EHR and the bill. There is no hardware to procure, no IT integration project as a precondition, and no clinician retraining beyond a single onboarding session.