Your Complete Guide to Medical Billing, Coding & Careers
Medical Billing Info is a free resource hub for medical billing and coding professionals, students, and healthcare practices. Learn the billing process step by step, find specialty-specific coding guidance, understand EHR/EMR systems, access free industry resources and downloadable manuals, and browse remote-friendly jobs in medical billing and coding.
Explore the Guides
Medical Billing Process
A step-by-step walkthrough of the revenue cycle, from patient registration to payment posting and denial management.
Read the guide →Specialties & Coding Guidelines
CPT, ICD-10-CM, and HCPCS coding guidance organized by medical specialty.
Read the guide →EHR & EMR Systems
What EHR and EMR mean, how they differ, and how they connect to the billing workflow.
Read the guide →Free Resources
Curated links to official coding references, associations, tools, and downloadable templates.
Read the guide →Downloads & Manuals
Free training manuals covering RCM, front-desk workflows, dental billing, credentialing/EFT/ERA, and DME billing.
Browse downloads →Free Tools — Use Them Right Now
No sign-up required. Five free calculators and lookup tools built for daily medical billing and coding work.
RCM Calculators
Days in A/R, clean claim rate, denial rate, net collection rate, and more — 15 calculators across 5 categories.
Open the calculators →Denial Code Lookup
Search CARC and RARC denial codes with plain-English explanations and next-step guidance.
Look up a denial code →NPI Registry Lookup
Find a provider’s NPI number and registry details by name, organization, or location.
Search the NPI registry →ICD-10-CM Code Search
Search ICD-10-CM diagnosis codes by keyword or code to confirm the right code for a claim.
Search ICD-10-CM codes →Modifier & POS Reference
Quick reference for CPT/HCPCS modifiers and place-of-service codes, with usage notes.
Open the reference →Looking to Hire or Get Hired?
Employers can post medical billing, coding, and RCM openings — including remote roles — for free while our job board grows. Job seekers can browse and apply at no cost.