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Critical Care billing

Critical Care Medical Billing Services

Critical care is billed on time, documentation and medical necessity. Specialist billers capture every qualifying minute and procedure across the ICU, ED and step-down units.

  • Time-based 99291/99292 billing supported by documentation
  • Separately billable ICU procedures captured and reconciled
  • Split/shared and team billing rules applied correctly

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96%
Clean-claim rate target
20%
Revenue often missed in ICU charge capture
< 40
Days in A/R goal
Overview

Why critical care billing is high-risk and high-value

Critical care services are among the highest-value E/M services, but they come with strict requirements. The patient must have a critical illness or injury with a high probability of imminent deterioration, and the physician must document total critical care time, excluding separately billed procedures and time spent on non-critical activities.

Intensivists and hospitalists also perform procedures such as intubation, central lines and arterial lines that may be billed separately, while other services like ventilator management and blood gas interpretation are bundled into critical care. Knowing the difference is essential to avoid both under-billing and overpayment risk.

Because ICU coverage involves multiple physicians, nurse practitioners and physician assistants, billing must follow rules for split/shared visits and prevent duplicate claims. A critical care billing partner reconciles hospital census data against submitted charges every day so no encounter is lost.

Why it's hard

Common critical care billing challenges

01

Time documentation

Total critical care time must be documented and must exclude time spent on separately billed procedures.

02

Bundled vs. separate procedures

Some services are included in 99291; others like intubation or central lines can be billed separately.

03

Split/shared and team visits

Multiple clinicians in one day require careful attribution to avoid denials and duplicate billing.

04

Medical necessity scrutiny

Payers review whether the patient truly met critical care criteria at the time billed.

05

Missed charges from the ICU

Rounding notes, consults and night coverage often never reach billing without daily reconciliation.

06

Transitions between levels of care

Patients moving between ED, ICU and floor need the right code family each day.

What's included

What a critical care billing partner should handle

  • Daily hospital census and charge reconciliation
  • Critical care time review and code selection
  • Separately billable procedure capture
  • Split/shared visit and modifier FS review
  • Initial and subsequent hospital care coding
  • Pediatric and neonatal critical care billing
  • Denial management and medical-necessity appeals
  • Provider documentation education and feedback
  • Payer underpayment tracking
  • Monthly productivity and revenue reporting
Coding focus

Key codes in critical care billing

Code(s)What it covers
99291Critical care, first 30–74 minutes of total time on a given date.
99292Each additional 30 minutes of critical care (add-on to 99291).
99221–99223Initial hospital inpatient or observation care.
99231–99233Subsequent hospital inpatient or observation care.
31500Emergency endotracheal intubation.
36556 / 36620Central venous catheter insertion / arterial line placement.
99468–99476Neonatal and pediatric critical care, initial and subsequent days.

Code examples are for orientation only. Always code from the current CPT®, HCPCS and ICD-10-CM code sets and payer policies.

Documentation that holds up

Every critical care note should state the critical condition, the interventions provided, and total time spent, excluding procedure time. Billing partners should audit a sample of notes regularly and give providers feedback before payers do.

How it works

Find the right billing partner in four steps

1

Share your goals

Tell us your specialty, monthly claim volume, EHR and the problems you want fixed, denials, slow A/R or staffing gaps.

2

Get a free audit

We review a sample of your claims and aging report to show where revenue is leaking and what a specialist could recover.

3

Compare vetted companies

Shortlist billers with proven critical care experience, transparent pricing and verified client reviews.

4

Onboard with confidence

Sign a BAA, connect your EHR and clearinghouse, and track clean-claim rate, days in A/R and collections from month one.

Compare

Top-rated medical billing companies

Billing companies listed on BillerFirms, ranked by client reviews. Ask each one about their critical care experience.

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5.0 5 reviews

Who We Are We are Prime Medical Billing Solutions, LLC, a results-driven medical billing and revenue cycle partner headquartered in Atlanta, Georgia. Since about 2015, we have operated with the belief that true value lies in partnering, rather than merely contracting, with providers to ensure personalized attention and peak revenue performance. Founded by seasoned billing professionals with 20+ years of combined expert experience, our home office in Atlanta supports both individual practices and larger provider groups. Our team is passionate about maximizing reimbursements and simplifying the billing journey step by step. What Services We Offer We provide a comprehensive suite of services designed to optimize every phase of the revenue cycle: Claims processing & billing management, including electronic, UB‑04, and HCFA‑1500 formats Accounts receivable and collections, focusing on paid-to...

Atlanta, Georgia
Founded 2015
Claims ProcessingDenial ManagementCredentialing (Payer & License)
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No reviews yet

GreenSense Billing is a trusted leader in medical billing and revenue cycle management, providing comprehensive solutions tailored to the unique needs of healthcare providers across the United States. Our mission is to streamline administrative complexities, optimize reimbursements, and enhance financial performance, allowing medical professionals to focus on delivering exceptional patient care. Our Services • We offer end-to-end medical billing and revenue management solutions, including: •  Medical Billing & Coding - Accurate claims processing to maximize reimbursements and minimize denials. •  Revenue Cycle Management (RCM) - A holistic approach to managing claims, payments, and collections. •  Provider Credentialing - Seamless enrollment with insurance networks to ensure timely reimbursements. •  Financial Solutions - Data-driven insights and financial reporting to optimize practice...

Las Vegas, Nevada
Founded 2003
Claims ProcessingDenial ManagementRevenue Cycle Management
Visit website View profile
No reviews yet

Let’s face it, medical billing shouldn’t be the most challenging part of running a practice. At Medical Lean Management, we take the chaos out of revenue cycle management so you can get back to what matters: delivering excellent patient care. Based in Corona, California, we’re not just another faceless billing company, we’re your partners in efficiency, here to simplify the financial side of healthcare. Why Us? Because We Get It. Paperwork piles up. Claims get denied. Regulations keep changing. It’s enough to make anyone’s head spin. That’s where we step in. We don’t just process claims, we optimize your entire revenue cycle, cutting through the red tape to get you paid faster and with fewer headaches. Our goal? To make your billing so smooth, you’ll wonder how you ever managed without us. Here’s How We Help: ✔ Fewer Denials, More Revenue - Our precision-driven approach slashes claim den...

Corona, California
Founded 1994
Claims ProcessingDenial ManagementRevenue Cycle Management
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No reviews yet

Overview & Mission Access Revenue Hawaii, founded in 2022 in Holualoa, Hawai‘i, is a specialized medical billing and revenue cycle management (RCM) company with a primary focus on behavioral and mental health providers. Drawing deeply from social work roots, the leadership team recognized the administrative friction mental health professionals face, credentialing delays, complex payer regulations, EMR documentation requirements, and chose to build a firm that helps clinicians focus fully on patient care. Their mission centers on removing financial and operational barriers so therapists, counselors, and behavioral health groups can thrive financially while delivering quality care to Hawai‘i’s communities. Origin Story & Local Presence The company was born out of a clear insight: behavioral health providers in Hawai‘i suffer unique administrative challenges. From intricate Medicaid billing...

Chandler, Arizona
Founded 2007
Claims ProcessingDenial ManagementRevenue Cycle Management
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Pricing

How much does critical care billing cost?

Most billing companies charge a percentage of what they actually collect, so their incentive matches yours. Complex specialties sit at the higher end of the range because of prior authorizations, modifiers and appeal work.

Percentage of collections
5% - 8%

Most common. You pay only on money collected.

Per claim
$4 - $10

Predictable for high-volume, low-complexity claims.

Hourly / FTE
$12 - $35/hr

Dedicated billers working inside your systems.

Typical market ranges; actual quotes depend on claim volume, payer mix and scope. Compare quotes from several companies.

FAQ

Critical Care billing FAQs

When a physician or qualified provider spends at least 30 minutes on critical care for a critically ill or injured patient on the same date, with time documented.

No. Time spent performing separately billable procedures, such as central lines or intubation, must be excluded from critical care time.

Yes, if each provides medically necessary, non-duplicative care. Different specialties can bill independently; same-specialty group members follow time-combining rules.

Items such as interpretation of cardiac output, chest x-rays, blood gases, gastric intubation and ventilator management are generally included in 99291/99292.

By reconciling daily hospital census and provider schedules against submitted charges and following up on any gaps.

Typically 5% to 8% of collections, depending on volume and the number of facilities covered.

Related billing services

Hospital Billing billing Pulmonology billing Anesthesia billing Cardiology billing

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