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Module 10 · Advanced Revenue Cycle Management & KPI Analytics
Lesson 3 of 5

Days in A/R and Aging Analysis

Accounts receivable metrics show how quickly earned revenue is converted into cash and where outstanding balances are accumulating. Days in A/R is a broad speed indicator; aging buckets show where the inventory is getting older.

Intermediate22-26 minFree lesson
Quick calculation

How is Days in A/R calculated?

A common revenue-cycle formula is Days in A/R = accounts receivable ÷ average daily revenue. For example, $1,200,000 in A/R divided by $30,000 in average daily revenue equals 40 Days in A/R. Organizations should use one approved revenue basis consistently because changing the denominator changes the result.

Use the free Days in A/R calculator →

Days in A/R

HFMA's MAP Keys describe net days in A/R as a trending indicator of overall A/R performance, using net A/R divided by average daily net patient service revenue. Organizations should use a consistent revenue basis and clearly document whether the dashboard uses gross or net A/R.

Simplified example

If net A/R is $1,200,000 and average daily net patient service revenue is $30,000:

$1,200,000 / $30,000 = 40 days in A/R

Aging buckets

Days in A/R summarizes the whole receivable. Aging reports separate balances by age, commonly into ranges such as 0-30, 31-60, 61-90, 91-120 and more than 120 days. The exact buckets can vary by system.

What aging can reveal

  • Claims that were never received or accepted.
  • Pending authorization or medical-record requests.
  • Repeated denials with no completed next action.
  • Secondary or patient balances that were not transferred correctly.
  • Payer-specific processing delays.
  • Old credits or unresolved account adjustments.

Prioritize intelligently

Age alone should not determine follow-up priority. Combine age with balance size, timely-filing or appeal deadlines, payer behavior, denial reason and likelihood of recovery. A high-dollar claim nearing an appeal deadline may require faster action than a newer low-dollar balance.

Watch the denominator. Days in A/R can move because revenue changes even when A/R dollars stay similar. Review both the ratio and the underlying dollars before drawing conclusions.

Quick knowledge check

What does days in A/R broadly measure?

How many days of average revenue are represented by outstanding receivables under the organization's chosen formula.

Why review aging buckets in addition to total A/R?

They show where balances are accumulating and which receivables are becoming old.

Should follow-up priority be based only on age?

No. Consider dollars, deadlines, payer status, denial reason and recovery likelihood.

Content standards: This free lesson is educational material from Ultra Medical Solutions. Verify current payer, CMS, coding and contractual requirements before applying it to live billing work. Page updated September 26, 2026. Editorial standards →
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Related services, tools & guides

Use these next-step resources to connect the lesson with real revenue-cycle workflows.

Revenue Cycle ManagementConnect KPI analysis with operational RCM improvement.Explore → Net Collection Rate CalculatorCalculate a core collections metric using your own figures.Explore → Medical Billing KPI GuideUse denial, A/R, clean-claim and collection metrics together.Explore →
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Training note: This material is for education and staff development. Payer rules, plan benefits, coding guidance, contracts and regulations change; learners should verify current requirements with authoritative payer, CMS and coding resources when performing real billing work.