Billing: Difference between revisions

(Major rewrite: updated for 2023 CMS guidelines, clean billing table, MDM as primary driver section, legacy requirements section, critical care billing, internal links, documentation pages template)
 
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==Background==
==Background==
*Understanding ED billing is essential for appropriate reimbursement and documentation
*Understanding ED billing is essential for appropriate reimbursement and documentation
*As of 2023, CMS E/M coding for ED visits is based primarily on '''medical decision making (MDM)''' or '''total time''', no longer requiring specific HPI/ROS/exam element counts for billing level<ref name="cms2023">American Medical Association. CPT Evaluation and Management (E/M) Office or Other Outpatient and Other Services Code and Guideline Changes. 2023.</ref>
*As of 2023, CMS E/M coding for ED visits is based primarily on medical decision making (MDM) or total time, no longer requiring specific HPI/ROS/exam element counts for billing level<ref name="cms2023">American Medical Association. CPT Evaluation and Management (E/M) Office or Other Outpatient and Other Services Code and Guideline Changes. 2023.</ref>
*ED E/M visits use CPT codes 99281-99285; [[Critical care documentation|critical care]] uses 99291-99292
*ED E/M visits use CPT codes 99281-99285; [[Critical care documentation|critical care]] uses 99291-99292
*Proper documentation directly impacts revenue and medicolegal protection
*Proper documentation directly impacts revenue and medicolegal protection
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==Medical Decision Making (MDM)==
==Medical Decision Making (MDM)==
*MDM is the '''primary driver''' of ED billing level under current CMS guidelines
*MDM is the primary driver of ED billing level under current CMS guidelines
*MDM complexity is determined by three elements:
*MDM complexity is determined by three elements:
**'''Number and complexity of problems addressed'''
**Number and complexity of problems addressed
**'''Amount and complexity of data reviewed and analyzed''' (labs, imaging, records, discussions)
**Amount and complexity of data reviewed and analyzed (labs, imaging, records, discussions)
**'''Risk of complications, morbidity, or mortality''' from the patient's condition or management
**Risk of complications, morbidity, or mortality from the patient's condition or management


===How to Support Higher MDM===
===How to Support Higher MDM===
*Document '''differential diagnoses''' considered (see [[Differential diagnosis documentation]])
*Document differential diagnoses considered (see [[Differential diagnosis documentation]])
*Document independent review of '''labs and imaging'''
*Document independent review of labs and imaging
*Note '''discussions with consultants''' and other providers
*Note discussions with consultants and other providers
*Document '''review of external records'''
*Document review of external records
*Note '''prescription medications''' ordered
*Note prescription medications ordered
*Document the '''risk assessment''' including potential complications
*Document the risk assessment including potential complications
*See [[MDM for different chief complaints]] for sample MDM documentation by chief complaint
*See [[MDM for different chief complaints]] for sample MDM documentation by chief complaint


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*See [[Critical care documentation]] for detailed information
*See [[Critical care documentation]] for detailed information
*Critical care can be coded when total duration of critical care services ≥30 minutes
*Critical care can be coded when total duration of critical care services ≥30 minutes
*Time does '''not''' need to be continuous
*Time does not need to be continuous
*Must '''exclude''' separately billable procedures from critical care time
*Must exclude separately billable procedures from critical care time
*Can bill E/M '''plus''' critical care if the E/M is for the initial evaluation before the patient becomes critical
*Can bill E/M plus critical care if the E/M is for the initial evaluation before the patient becomes critical


==See Also==
==See Also==
*[[Documentation for emergency physicians]]
*[[Critical care documentation]]
*[[MDM for different chief complaints]]
{{Documentation pages}}
{{Documentation pages}}


Latest revision as of 19:01, 25 March 2026

Background

  • Understanding ED billing is essential for appropriate reimbursement and documentation
  • As of 2023, CMS E/M coding for ED visits is based primarily on medical decision making (MDM) or total time, no longer requiring specific HPI/ROS/exam element counts for billing level[1]
  • ED E/M visits use CPT codes 99281-99285; critical care uses 99291-99292
  • Proper documentation directly impacts revenue and medicolegal protection

ED E/M Billing Levels

CPT Code Level MDM Complexity RVUs
99281 Level 1 Straightforward 0.64
99282 Level 2 Low 1.24
99283 Level 3 Moderate 2.10
99284 Level 4 Moderate 3.57
99285 Level 5 High 5.16
99291 Critical Care (1st hr) N/A 8.19

Medical Decision Making (MDM)

  • MDM is the primary driver of ED billing level under current CMS guidelines
  • MDM complexity is determined by three elements:
    • Number and complexity of problems addressed
    • Amount and complexity of data reviewed and analyzed (labs, imaging, records, discussions)
    • Risk of complications, morbidity, or mortality from the patient's condition or management

How to Support Higher MDM

  • Document differential diagnoses considered (see Differential diagnosis documentation)
  • Document independent review of labs and imaging
  • Note discussions with consultants and other providers
  • Document review of external records
  • Note prescription medications ordered
  • Document the risk assessment including potential complications
  • See MDM for different chief complaints for sample MDM documentation by chief complaint

Legacy CMS Requirements (Historical)

Note: These element counts are no longer required for billing level under 2023 guidelines, but remain part of the medical record structure

History of Present Illness (HPI)

  • Location, Severity, Timing, Modifying factors, Associated signs and symptoms, Onset, Quality, Duration

Past Medical, Family, Social History

  • Past medical/surgical history, Hospitalizations, Immunizations
  • Family history (health status, deaths, hereditary diseases)
  • Social history (drug/alcohol/tobacco use, employment, marital status)

Review of Systems

Physical Exam

Critical Care Billing

  • See Critical care documentation for detailed information
  • Critical care can be coded when total duration of critical care services ≥30 minutes
  • Time does not need to be continuous
  • Must exclude separately billable procedures from critical care time
  • Can bill E/M plus critical care if the E/M is for the initial evaluation before the patient becomes critical

See Also

Documentation Pages

References

  1. ↑ American Medical Association. CPT Evaluation and Management (E/M) Office or Other Outpatient and Other Services Code and Guideline Changes. 2023.
  2. ↑ 2.0 2.1 https://efficientmd.com/a-simplified-explanation-of-emergency-department-e-m-coding/
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