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CPT_99231_Template

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CPT Code 99231 Documentation Template

Subsequent Hospital/Observation Visit - Low Complexity

Code Level: Low complexity subsequent inpatient E/M
Typical Time: 15 minutes (inpatient subsequent time)
2025 Medicare Reimbursement: $101.36
Requirement Method: Time-based OR Low-Complexity MDM (choose one)

⚠️ CRITICAL QUALIFICATION REQUIREMENTS

Setting & Timing Requirements

  • Inpatient Hospital Setting - Patient in hospital bed (NOT observation-only)
  • Subsequent Visit - NOT the initial admission (use 99221-99223 for initial)
  • Same Provider - By provider or provider group during ongoing hospitalization
  • Daily or More Frequent - Typically one per calendar day

NOTE: Observation subsequent visits use codes 99224-99226 (different codes!)

Complexity Threshold (Must Choose One)

Option A: TIME-BASED CODING

  • Total time on this date: Approximately 15 minutes minimum
  • Includes: History update, focused exam, medical decision-making, documentation
  • Time calculations include all unit/floor time

Option B: LOW-COMPLEXITY MDM

  • Medical Decision-Making qualifies as LOW complexity (see MDM section)
  • Stable condition(s) with routine monitoring
  • Minimal management changes

SECTION 1: VISIT INFORMATION

Date of Visit: _______________
Hospital Day: _____ (Day 1 = admission date)
Provider Name & NPI: _________________________________
Patient MRN/Account: _________________________
Current Patient Status: [ ] Improving [ ] Stable [ ] Declining [ ] ICU level

SECTION 2: INTERVAL HISTORY / CLINICAL CHANGES

Required: Document changes since last visit or overnight

Interval Changes (since last evaluation):

  • No significant changes - patient stable
  • Symptom improvement: ________________________________________________
  • New or worsening symptoms: ________________________________________________
  • Medication response noted: ________________________________________________

Patient/Family Reports:

Nursing/Staff Reports: [ ] No new issues [ ] Issues: ________________________________________________

Overnight/Interim Events:

  • Event-free overnight
  • Event(s): ________________________________________________

SECTION 3: REVIEW OF SYSTEMS (ROS)

Systems reviewed:

Constitutional: [ ] Denies / [ ] Reports ________________________
Fever overnight: [ ] No [ ] Yes (temp: _____)

Cardiovascular: [ ] Denies / [ ] Reports ________________________
Chest pain/palpitations: [ ] Denies [ ] Reports: _______

Respiratory: [ ] Denies / [ ] Reports ________________________
Dyspnea/cough: [ ] Denies [ ] Reports: _______

Gastrointestinal: [ ] Denies / [ ] Reports ________________________
Nausea/vomiting/diarrhea: [ ] Denies [ ] Reports: _______

Genitourinary: [ ] Denies / [ ] Reports ________________________
Dysuria/frequency: [ ] Denies [ ] Reports: _______

Neurological: [ ] Denies / [ ] Reports ________________________
Confusion/headache: [ ] Denies [ ] Reports: _______

Other relevant systems:

SECTION 4: PHYSICAL EXAMINATION (PE)

Interval Exam: Focused on admission diagnosis and any new concerns (2+ systems)

Vital Signs (Current):
BP: / HR: _____ RR: _____ Temp: _____ O₂ Sat: _____

General:
[ ] Appears well / [ ] Distressed [ ] Alert/oriented x3

Focused Exam #1:
System: _________________ Findings: [ ] Improved [ ] Unchanged [ ] Worsened
Details: __________________________________________________

Focused Exam #2:
System: _________________ Findings: [ ] Improved [ ] Unchanged [ ] Worsened
Details: __________________________________________________

Pertinent Negatives:

SECTION 5: ASSESSMENT & CURRENT DIAGNOSES

Primary Diagnosis: ____________________________________________
Current status: [ ] Improving [ ] Stable [ ] Complicating

Other Active Diagnoses:

  1. _________________________________ Status: [ ] Improving [ ] Stable [ ] Complicating
  2. _________________________________ Status: [ ] Improving [ ] Stable [ ] Complicating

Clinical Summary (brief):

SECTION 6: MEDICAL DECISION-MAKING (MDM) - COMPLEXITY JUSTIFICATION

Low-Complexity MDM Required: Meet 2 of 3 Categories Below

CATEGORY 1: NUMBER AND COMPLEXITY OF PROBLEMS ADDRESSED

✓ Check all that apply:

  • One or more stable chronic problems

    • Problem: _________________ Status: Stable/improving

  • One acute problem, improving

    • Problem: _________________ Trend: Improving/resolved

Point Achieved? [ ] YES - Category 1 Satisfied [ ] NO - Move to Categories 2 & 3

CATEGORY 2: AMOUNT AND COMPLEXITY OF DATA REVIEWED/ORDERED

✓ Must meet ANY combination of 2 from the following:

Data Reviewed/Ordered:

  • Review of lab results: _______________________
  • Review of imaging: _______________________
  • Ordering of test/study: _______________________
  • Review of vital signs/I&Os: Routine monitoring

Total items checked: _____/2 minimum needed

Point Achieved? [ ] YES - Category 2 Satisfied [ ] NO - Check Category 3

CATEGORY 3: RISK OF COMPLICATIONS/MORBIDITY/MORTALITY

✓ Check all that apply:

  • Routine medication management (no new issues)

    • Medications continued as ordered

  • Routine monitoring/observation

    • Stable, no new interventions

Point Achieved? [ ] YES - Category 3 Satisfied [ ] NO

MDM COMPLEXITY SUMMARY

Categories Satisfied:

  • Category 1 (Problem Complexity)
  • Category 2 (Data Review)
  • Category 3 (Risk Assessment)

Total Categories Met: _____/3 required = 2 minimum for LOW COMPLEXITY

✅ LOW COMPLEXITY MDM ACHIEVED [ ] YES [ ] NO

SECTION 7: CLINICAL REASONING & MANAGEMENT

Assessment of Patient Progress:

Current Clinical Stability:

  • Stable vital signs
  • Responding to treatment as expected
  • Ready for discharge planning considerations

SECTION 8: PLAN & MANAGEMENT CHANGES

Medications:

  • Continue current regimen without change
  • Changed: _________________ Reason: _________________________
  • Discontinued: _________________ Reason: _________________________
  • Added: _________________ Indication: _________________________

Monitoring/Vital Signs:

  • Continue routine monitoring
  • Frequency: [ ] Q4h [ ] Q6h [ ] Daily

Diet/Activity:

  • Continue current restrictions/level
  • Advancement: [ ] Clear liquids to regular [ ] Bed rest to ambulation

Diagnostic Tests:

  • No new tests ordered (results reviewed: ______________)
  • Ordered: _________________ Reason: _________________________

Other Management:

Follow-up Plan:

  • Routine daily visit
  • Discharge planning: [ ] Continue current plan [ ] Expedited discharge consideration

SECTION 9: TIME DOCUMENTATION (If Using Time-Based Coding)

Total Time on This Visit Date: ________________ minutes

Time Range for 99231: 15 minutes minimum ✅

Breakdown of Time Spent:

ActivityMinutesDetails
Review interval history_____Nursing notes, overnight events
Vital signs/chart review_____Current status check
Focused physical exam_____2+ systems
Medical decision-making_____Routine plan review
Documentation_____Note entry
TOTAL TIME_____≥15 minutes minimum

SECTION 10: CODING DECISION & JUSTIFICATION

Primary Coding Method Used:

  • TIME-BASED: 15 minutes or more on this date
  • MDM-BASED: Low-complexity medical decision-making (2 of 3 categories met)

Code Selection:

  • CPT 99231 - Subsequent Hospital/Observation Visit, Low-Complexity E/M

Compared to Other Subsequent Codes:

  • 99231: Low complexity, stable conditions ✅ APPROPRIATE
  • 99232: Moderate complexity, changes in management
  • 99233: High complexity, significant new issues/deterioration

Audit Defense Checklist:

  • This is clearly a subsequent visit (NOT initial admission)
  • Patient status stable or improving
  • Low complexity appropriately justified
  • Focused history and exam documented
  • Straightforward medical decision-making documented
  • Routine monitoring and management plan documented

SECTION 11: PROVIDER SIGNATURE & CREDENTIALS

Provider Signature: ________________________ Date/Time: __________

Printed Name: ___________________________

Credentials: ____________________________

NPI: ___________________________________

Attestation: I personally evaluated this patient and attest that the documentation accurately reflects the complexity of this subsequent hospital visit and meets medical necessity criteria for CPT code 99231.

QUICK REFERENCE: COMMON 99231 SCENARIOS

Example 1: Post-Op Day 1 - Routine Recovery

Key Documentation:

  • Hospital Day: 1 (admission day post-op)
  • Vital Signs: Stable, temp 98.6°F
  • HPI: Overnight events: None, patient rested well
  • Wound: Dry and intact, mild pain controlled
  • Assessment: Post-op day 1, routine recovery proceeding as expected
  • Plan: Continue current pain management, advance diet, routine monitoring
  • Time: 18 minutes
  • Code: 99231 ✅

Example 2: Stable CHF - Day 3 of Hospitalization

Key Documentation:

  • Hospital Day: 3
  • Interval: Improved dyspnea, weight down 2 lbs
  • Vital Signs: BP controlled, HR 72 (was 102 day 1)
  • Exam: Lungs clear, no orthopnea, reduced edema
  • Labs reviewed: BNP trending down
  • Assessment: CHF exacerbation, improving on current diuretic regimen
  • Plan: Continue diuretics, tomorrow’s labs pending
  • Time: 16 minutes
  • Code: 99231 ✅

Example 3: Pneumonia - Day 2, Responding to Antibiotics

Key Documentation:

  • Hospital Day: 2
  • Interval: Fever resolved, cough improving
  • Vital Signs: Temp 98.4°F (was 101.2° yesterday), RR 18
  • Exam: Lungs still with crackles but clearer than yesterday
  • Assessment: CAP, responding to antibiotics
  • Plan: Continue IV antibiotics, consider discharge tomorrow if continues improving
  • Time: 15 minutes
  • Code: 99231 ✅

Example 4: Diabetic Ketoacidosis - Day 4, Improving

Key Documentation:

  • Hospital Day: 4
  • Interval: Alert and oriented (was confused day 1), glucose normalized
  • Vital Signs: Stable, no respiratory distress
  • Labs: pH normalized, glucose 180 mg/dL
  • Assessment: DKA, resolving, ready to transition to subcutaneous insulin
  • Plan: Prepare for discharge with insulin teaching
  • Time: 17 minutes
  • Code: 99231 ✅

KEY DIFFERENCES: 99231 vs 99232 vs 99233

Element99231 (Low)99232 (Moderate)99233 (High)
Time~15 min~25 min~35 min
HistoryInterval (brief)Interval (expanded)Interval (detailed)
PE2+ systems2+ systems2+ systems
MDMLowModerateHigh
Typical PatientStable/improvingSome changes in planNew issues/complications
Reimbursement$101.36$145.49$194.09

COMPLIANCE REMINDERS ⚠️

✅ BEST PRACTICES FOR 99231

  • Document clearly that this is a subsequent visit (not initial)
  • Focus on interval changes and patient progress
  • Document stable condition appropriately (no artificial complexity)
  • Include time documentation when applicable
  • Ensure consistency with discharge planning

❌ COMMON ERRORS TO AVOID

  • Billing 99231 for initial admission (use 99221 instead)
  • Coding 99231 when patient has moderate/high complexity changes (should be 99232/99233)
  • Over-documenting routine stable visit
  • Missing notation that this is day X of hospitalization
  • Not documenting time if using time-based method

Template Last Updated: February 2026
Compliant with: 2021 AMA E/M Guidelines, CMS Inpatient Standards

This template is provided as a professional tool for medical documentation. Ensure compliance with your facility’s policies and CMS regulations.

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