Somewhere in a skilled nursing facility right now, an MDS coordinator is doing three things simultaneously: completing a 14-day assessment, fielding a question from therapy about a Section GG score from last week, and mentally calculating whether the ARD she set yesterday is going to be challenged at the next IDT meeting. She has not eaten lunch.
The MDS — the Minimum Data Set — is the clinical and financial backbone of every Medicare-certified SNF in the country. It determines PDPM payment rates. It feeds quality measures. It triggers care planning. Get it right, and your facility is capturing the reimbursement it actually earned. Get it wrong, and you're leaving thousands of dollars per resident, per stay, on the table — or worse, you're overcoding and setting yourself up for an audit.
Care Plan Compliance GuideThere is no compliance role in long-term care with a higher financial impact and lower administrative support than the MDS coordinator. This guide covers what proper MDS assessment documentation actually requires, the most common coding errors we see in SNFs, and how organized MDS templates make the whole operation more accurate, defensible, and survivable. For the complete 18-document toolkit, the MDS Bundle ($149) has everything. But start here.
The Revenue Engine Running on Tribal Knowledge
Under PDPM — the Patient-Driven Payment Model that replaced RUGs in 2019 — Medicare reimbursement is calculated from the MDS. Not from nurse notes. Not from therapy logs. From the MDS. Which means that if the MDS is incomplete, inaccurate, or coded by someone who learned the RAI manual from a predecessor who left in 2018, the facility is not getting paid what it earned.
PDPM groups residents into five payment components, each derived from specific MDS sections:
- PT component — driven primarily by Section GG functional scores and primary diagnosis
- OT component — also driven by Section GG and primary diagnosis
- SLP component — driven by Section B (hearing/speech), Section C (cognition), Section I (diagnoses like dysphagia), and specific swallowing flags
- Nursing component — driven by Section I diagnoses, Section J (health conditions), Section H (continence), Section M (skin), and NTA comorbidities
- Non-Therapy Ancillary (NTA) component — driven by a list of 50+ clinical indicators across multiple sections
Every one of those components has its own coding rules, lookback windows, and clinical verification requirements. Miss a diagnosis in Section I that drives a higher nursing RUG? That's hundreds of dollars per day, for every day of the Medicare stay. Under-code Section GG because the therapist and the MDS coordinator aren't communicating clearly? Same result.
This is why the MDS coordinator is not just a compliance role — they're a revenue role. And the facilities that treat it that way consistently outperform their peers on reimbursement accuracy.
- MDS coordinator reviews and closes all assessments on or before ARD + 14-day lock period
- IDT meeting includes clinical verification of Section GG scores before submission
- Diagnosis coding is verified against physician orders and clinical documentation
- CAA summary is completed and signed for every triggered care area
- Quarterly audits of at least 5 MDS assessments per quarter for coding accuracy
- All coding decisions documented with supporting clinical evidence in the medical record
What MDS Assessment Documentation Actually Requires
The RAI Manual is 750+ pages. Nobody is reading it cover to cover — and you shouldn't have to. But you do need to understand which sections drive what, what the lookback windows are, and where clinical documentation has to exist before you can code.
The Assessment Reference Date (ARD)
The ARD is the most important single date in the MDS process. It defines the lookback window for nearly every coded item and determines which payment assessment type applies. Most sections have a 7-day lookback from the ARD. Section GG is assessed at admission and discharge. Getting the ARD wrong — or setting it late — can shift a resident out of a higher payment category entirely.
- Setting the ARD too early — before therapy has established a baseline — can result in lower Section GG functional scores
- Setting the ARD after the grace days expire converts a PPS assessment to a non-Medicare assessment, losing the payment basis entirely
- Failing to set a discharge assessment ARD means the Section GG discharge performance is never captured — which affects quality measure reporting
- Missing the 5-day assessment window on a Medicare admission (days 1–8 for A0310A=01) has no grace period
Section GG: Functional Abilities and Goals
Section GG is the PDPM powerhouse. It captures functional independence in self-care and mobility at admission and discharge, and those scores directly determine the PT and OT payment components. The coding scale runs from 07 (complete independence) down to 01 (dependent), with every step representing a different level of skilled need.
The critical thing to understand: Section GG codes what the resident actually performs, not what they could perform if they tried harder. If a resident needs hands-on assistance for bed mobility but nursing is doing most of the work, that codes as substantial or maximal assistance — not independent. The clinical record has to support the score, and the MDS coordinator has to get that documentation from the clinical team before coding.
Section GG Self-Care Items
PDPM PT/OTEating, oral hygiene, toileting hygiene, shower/bathe self, upper body dressing, lower body dressing, putting on/taking off footwear. Each coded on the 6-point performance scale (01–06) or with special codes (07, 09, 10, 88).
- Coded based on what occurred during the 3-day assessment period
- Requires documented evidence in nursing notes or therapy observation
- If no activity occurred, use code 88 (activity did not occur)
Section GG Mobility Items
PDPM PT/OTRoll left and right, sit to lying, lying to sitting on side of bed, sit to stand, chair/bed-to-chair transfer, toilet transfer, car transfer, walk 10 feet, walk 50 feet with two turns, walk 150 feet, walking 10 feet on uneven surfaces, 1 step, 4 steps, 12 steps, picking up object, wheel 50 feet self-propelled, wheelchair 150 feet.
- Not all items apply to every resident — use 88 for activities that didn't occur
- Admission performance is coded on admission, discharge on discharge
- Goal codes (GG0170B1 etc.) represent the expected discharge performance
Section I: Active Diagnoses
Section I is where you document every active diagnosis present and affecting care during the lookback period. "Active" means the diagnosis was present, monitored, evaluated, or treated — not just that it's in the past medical history. This section drives NTA comorbidities, nursing component grouping, and SLP payment for conditions like dysphagia, aphasia, and traumatic brain injury.
The RAI Manual requires that every coded diagnosis be supported by a physician-documented diagnosis in the medical record. This means if nursing has been treating a wound but the physician hasn't documented pressure injury in their notes, you can't code it in Section I — even if it's obvious.
Section V: Care Area Assessment (CAA) Summary
The CAAs are one of the most skipped parts of the MDS process — and one of the most commonly cited. There are 20 care areas in the CAA framework. When an MDS item triggers a care area (e.g., low BIMS score triggers the Cognitive Loss/Dementia CAA), the interdisciplinary team is required to investigate, document findings, and decide whether to proceed to care planning.
The CAA summary in Section V must document: which care areas triggered, which care areas are being addressed in the care plan, and which are not (with the reason). Surveyors pull this section directly when reviewing care planning deficiencies under F656 and F657.
MDS Coding Errors That Cost Facilities Thousands
The following errors show up in MDS audits with enough frequency that every MDS coordinator should have them memorized. Some are undercoding errors (leaving reimbursement on the table). Some are overcoding errors (creating audit liability). All of them are preventable with the right template structure and interdisciplinary process.
Section GG Under-Coding on Admission
The most common and most expensive coding error in PDPM facilities. Therapy hasn't completed a full evaluation before the 5-day ARD, so GG scores default to conservative estimates — or nursing codes based on what they've observed in day-to-day care without formal documentation of the assistance level.
Establish a formal protocol requiring therapy to complete GG admission coding within the ARD window, with documentation in the medical record. MDS coordinator reviews therapy GG scores before submitting.
Missing NTA Comorbidity Codes in Section I
The NTA component pays significant per-diem premiums for high-acuity comorbidities — things like IV medications, parenteral nutrition, tracheostomy care, dialysis, and multi-drug resistant organisms. These require a coded diagnosis in Section I and active treatment. If the diagnosis isn't coded, the NTA points aren't captured.
Use a structured Section I coding checklist at every assessment. Cross-reference against physician orders, therapy notes, and nursing care plans to identify NTA-eligible conditions that may not have been documented by the physician.
Incorrect Primary Diagnosis Coding
PDPM uses the primary diagnosis (I0020B) to assign residents to clinical categories for the PT, OT, and SLP components. Using the wrong ICD-10 code — or coding an unrelated condition as primary — can push a resident into a lower-paying category. A resident admitted for hip fracture should not have "unspecified injury" as the primary diagnosis.
Review primary diagnosis coding against the physician admission note, H&P, and reason for skilled care at every PPS assessment. Use the PDPM clinical category mapping table to verify the coded diagnosis groups correctly.
Section C BIMS vs. Staff Assessment Errors
The Brief Interview for Mental Status (BIMS) must be attempted on all residents who can participate. The Staff Assessment for Mental Status is only used when the resident cannot complete the BIMS due to physical limitations or language barriers. Using the staff assessment when the resident was capable of completing the BIMS — or vice versa — produces an inaccurate cognitive score that affects Section E, CAA triggers, and potentially SLP payment.
Document in the medical record why the BIMS was or was not attempted. If the resident refused, document the refusal. Use code 03 (no response) only when the resident made no attempt at all.
Section GG Admission vs. Discharge Inconsistency
If Section GG discharge performance is coded higher than the admission performance without clinical documentation supporting the functional improvement, it raises a quality measure flag — and potentially an audit flag. Conversely, coding discharge performance the same as or lower than admission when the resident actually improved understates the facility's quality outcomes.
Build a Section GG discharge comparison into your pre-discharge process. Therapy documents final functional status before discharge, MDS coordinator compares to admission scores, and discrepancies are reviewed at IDT before the assessment is locked.
Skipping or Abbreviating CAA Documentation
Every triggered CAA needs a completed investigation and a care area decision in Section V. Many facilities document "reviewed — not a problem" for triggered care areas without any supporting clinical rationale. This is a surveyor magnet. If the CAA was triggered, the IDT had a reason to look at it — document what you found.
Use a CAA template that includes: triggered by (which MDS item), clinical findings, interdisciplinary input, decision (proceed or not), and rationale. Keep a copy in the care plan section for surveyor access.
MDS 3.0 Section Quick Reference: What Each Section Drives
This is the cheat sheet version. Every section of the MDS 3.0 serves a specific function — some drive PDPM payment, some drive quality measures, some drive care planning requirements. Knowing which section does what keeps you from spending an hour on a section that doesn't move any levers for a particular resident.
| Section | Name | Primary Driver | Reimbursement Impact |
|---|---|---|---|
| A | Identification Information | Assessment type, ARD, payer source | Critical |
| B | Hearing, Speech, and Vision | SLP component (communication) | Moderate |
| C | Cognitive Patterns (BIMS) | SLP component, CAA triggers, quality measures | Moderate |
| D | Mood (PHQ-9) | Mood quality measures, CAA trigger | Indirect |
| E | Behavior | Behavioral quality measures, care planning | Indirect |
| F | Preferences for Customary Routine | Person-centered care planning (F675) | Compliance |
| G | Functional Status (ADLs) | Quality measures (not PDPM payment directly) | Indirect |
| GG | Functional Abilities and Goals | PT component, OT component, quality measures | Critical |
| H | Bladder and Bowel | Nursing component (incontinence), NTA points, quality measures | Moderate |
| I | Active Diagnoses | Primary PDPM category, NTA component, SLP component, Nursing component | Critical |
| J | Health Conditions | NTA points (e.g., falls, pain), CAA triggers | Moderate |
| K | Swallowing / Nutritional Status | SLP component (K0100 swallowing flags), NTA points | Moderate |
| M | Skin Conditions | NTA points (pressure injuries), nursing component, quality measures | Critical |
| N | Medications | NTA points (antipsychotics, anticoagulants, etc.) | Moderate |
| O | Special Treatments and Programs | NTA points (IV medications, dialysis, ventilator), therapy minutes | Critical |
| P | Restraints / Alarms | Quality measures, F-tag compliance | Compliance |
| Q | Participation in Assessment | Discharge planning, PASRR compliance | Compliance |
| V | Care Area Assessment (CAA) Summary | Care plan triggers (F656, F657) | Critical |
| Z | Assessment Administration | Signatures, completion dates, submission timing | Critical |
Pay particular attention to Sections A, GG, I, M, O, V, and Z. Those seven sections account for the majority of PDPM payment determination and the majority of MDS-related survey citations. If your templates are weak anywhere, they're probably weak there.
Need the Full MDS Template Toolkit?
The MDS Bundle includes 18 documents: ARD scheduling tools, Section GG coding worksheets, CAA documentation templates, ICD-10 quick reference, MDS audit checklist, coordinator workflow guide, and more. Everything your facility needs to code accurately and audit-proof your process.
Building an MDS Template Workflow That Actually Holds Up
An MDS template isn't a blank form. A blank form is just a form. An MDS template is a structured workflow document that tells the coordinator what to collect, from whom, in what timeframe, and with what clinical verification — before the assessment is locked. The difference between a template and a form is the same as the difference between a recipe and a refrigerator.
Here's what a proper MDS template workflow looks like across the key assessment types:
5-Day PPS Assessment: Days 1–3
Admission GG assessment: therapy initiates GG coding within 72 hours of admission. MDS coordinator reviews Section B and C (hearing/cognition) from nursing observation. Diagnosis coding begins — cross-reference physician H&P and admission note against Section I checklist. Nursing documents ADL dependency in chart to support Section G and GG.
5-Day PPS Assessment: Days 4–6
ARD set no later than Day 5 (Day 8 with grace days, but never for 5-day). Section K (swallowing) reviewed with SLP if applicable. Section O (special treatments) verified against nursing and therapy orders. Section M (skin) reviewed with wound care nurse. NTA checklist completed against Section I and Section O diagnoses.
5-Day PPS Assessment: ARD + 14 Days
CAA review: identify all triggered care areas, complete interdisciplinary investigation, document findings and care plan decisions in Section V. MDS coordinator conducts final review of all coded sections against supporting documentation. Section Z signatures obtained from all disciplines. Assessment submitted to CMS via Minimum Data Set Submission System (MDSS).
Quarterly and Annual Assessment Workflow
For non-PPS assessments, ARD is set to capture current clinical status. Focus areas: Section C (BIMS updated), Section D (PHQ-9 updated), Section G and GG (functional status change), Section I (diagnosis changes), Section M (skin condition changes). CAAs re-triggered based on score changes — investigate and update care plan decisions accordingly.
Discharge Assessment Workflow
Section GG discharge performance coded within 3 days of discharge date. Compare discharge vs. admission scores for PT/OT quality measures. Reason for discharge coded in Section A. Discharge disposition (return to community, hospital, expired) documented. Ensure Section Z signatures include all required disciplines before final lock.
What Your MDS Templates Should Include
A complete MDS template toolkit covers more than just the assessment form itself. The 18-document MDS Bundle is built around this structure, but here's what every facility needs at minimum:
- ARD scheduling matrix — maps assessment types to admission dates with grace day calculations
- Section GG coding worksheet — structured observation guide for therapy and nursing
- Section I active diagnosis checklist — cross-referenced against NTA comorbidity list
- CAA documentation template — one per care area, with investigation, findings, and care plan decision fields
- MDS IDT meeting agenda — pre-assessment review structure for each discipline
- PDPM payment calculation reference — maps coded sections to expected payment components
- MDS coordinator workflow tracker — assessment schedule, ARD calendar, submission deadlines
- ICD-10 quick reference for SNF — common SNF admission diagnoses with correct coding
MDS Audit Readiness: What Surveyors and RAC Auditors Actually Check
There are two kinds of MDS scrutiny your facility needs to be prepared for: state survey MDS-related citations (primarily around care planning accuracy and assessment completeness) and Recovery Audit Contractor (RAC) audits focused on PDPM reimbursement accuracy. They look at different things, but both require the same underlying foundation: accurate coding backed by clinical documentation.
What State Surveyors Check (MDS-Related Citations)
During a standard annual survey, surveyors pull MDS assessments for a sample of residents and cross-reference them against the medical record. The most commonly cited MDS accuracy issues include:
- F641 (Accuracy of Assessments) — coded items in the MDS that aren't supported by clinical documentation in the medical record. Classic example: Section M pressure injury stage coded as Stage 2 but nursing notes describe a Stage 3.
- F656 / F657 (Comprehensive Care Plan) — CAA triggers that weren't investigated, or investigated but not addressed in the care plan without documentation of why.
- F842 (Resident Assessment) — assessments completed late (outside the required window), missing required signatures, or submitted with known errors that weren't corrected.
What RAC Auditors Check (PDPM Reimbursement)
RAC audits focus on whether Medicare paid the right amount. They pull claims, then request medical records to verify that the clinical documentation supports the PDPM grouping. Red flags that trigger RAC review:
- Section GG admission scores that are significantly lower than what's documented in therapy notes
- High NTA scores with no corresponding physician-documented diagnoses or active treatment orders
- Primary diagnosis groupings that are inconsistent with the admission diagnosis or reason for skilled care
- Section O special treatment flags (e.g., IV medications, ventilator) without corresponding orders or nursing documentation
- High volume of maximum-complexity PDPM groupings without clinical acuity to match
- Every coded Section I diagnosis needs a physician-documented diagnosis in the medical record
- Every Section GG score needs nursing or therapy documentation of the assistance level provided
- Every NTA comorbidity needs an active treatment order or documented clinical intervention
- Every triggered CAA needs a completed investigation and care plan decision in Section V
- Every assessment needs Section Z signatures from all disciplines within the required timeframe
Running Your Own MDS Accuracy Audits
The most effective RAC prevention is internal auditing. Pull five to ten MDS assessments per quarter — ideally a mix of 5-day PPS and quarterly assessments — and run them through a structured audit tool that checks each coded section against the supporting clinical documentation. Flag discrepancies before a RAC does.
Specific items to check in every audit:
- Section A: Is the ARD within the required window? Is the assessment type correct?
- Section GG: Are the coded scores consistent with therapy and nursing documentation from the lookback period?
- Section I: Is every coded diagnosis supported by a physician note, order, or documented clinical finding?
- Section O: Are all special treatment flags matched to active orders?
- Section V: Is the CAA summary complete? Are all triggered care areas addressed?
- Section Z: Are all required signatures present and dated within the completion window?
The Bottom Line on MDS Templates
The MDS coordinator job is not going to get easier. PDPM is getting more scrutiny, not less. Quality measure weighting continues to increase. RAC audits are expanding. And the average SNF is still running on some version of "whoever was here before me built this spreadsheet."
The facilities that consistently capture accurate reimbursement, avoid audit findings, and survive state survey MDS scrutiny have one thing in common: a structured, documented, interdisciplinary MDS process with templates that actually match the RAI Manual requirements. Not tribal knowledge. Not a binder from 2016. A current, organized toolkit that every coordinator — new or experienced — can use to produce consistently accurate assessments.
That's what the MDS Bundle is built to be. Eighteen documents covering every stage of the assessment process, built for the reality of how SNFs actually operate.
Ready to Build a Survey-Ready MDS Process?
FacilityKit's MDS Bundle has 18 documents covering ARD scheduling, Section GG coding, CAA templates, ICD-10 reference, audit checklists, and coordinator workflows — everything your team needs to code accurately and defend it.