Medical billing resources for physician practices cover the documentation, coding, and revenue cycle workflows that move claims from patient encounter to paid receivable. The articles below explain how CMS (Centers for Medicare and Medicaid Services) rules, AAPC (American Academy of Professional Coders) coding standards, and HIPAA (Health Insurance Portability and Accountability Act, 45 CFR Parts 160 and 164) requirements apply to everyday billing decisions in primary care, specialty practices, and outpatient operations across all 50 US states.
Every guide on this page is written by an AAPC-credentialed billing specialist and reviewed against current CMS Physician Fee Schedule values, NCCI (National Correct Coding Initiative) edits, and payer-specific prior authorization rules. The content is grouped by the five practice problems that drive most billing questions: claim denials, coding accuracy, revenue cycle optimization, regulatory compliance, and day-to-day practice management.
Denial Management Guides
Denial management resources explain how to identify, appeal, and prevent claim denials by CARC (Claim Adjustment Reason Code). The guides cover the most common Medicare and commercial denial codes, including CO-4 (procedure code inconsistent with modifier), CO-16 (claim lacks information), CO-18 (duplicate claim), CO-29 (timely filing), CO-50 (non-covered services), CO-97 (payment included in another service), and PR-1 (deductible). Each post pairs the denial code with the documentation that prevents it, the appeal letter language that resolves it, and the payer-specific filing window for redetermination, reconsideration, and ALJ (Administrative Law Judge) hearings.
Coding Tips and CPT Reference
Coding tips cover CPT (Current Procedural Terminology) and ICD-10-CM (International Classification of Diseases, 10th Revision, Clinical Modification) assignment for the codes physician practices bill most often. Articles explain the 2021 AMA (American Medical Association) E/M (evaluation and management) documentation guidelines for office visit codes 99202 through 99215, modifier rules including modifier 25 and modifier 59, telehealth billing under modifier 95, and specialty-specific code sets for cardiology, mental health, physical therapy, dermatology, and primary care. Each code is presented with its CMS average reimbursement value, RVU (Relative Value Unit), common denial reasons, and documentation requirements.
Revenue Cycle Optimization
Revenue cycle management content focuses on the metrics that determine whether a practice collects what it bills: clean claim rate, first-pass denial rate, days in accounts receivable (AR days), net collection rate, and patient responsibility recovery. Articles benchmark MMBS performance against industry averages (75 to 85 percent industry clean claim rate, 45 to 55 industry AR days) and explain the workflow changes that move a practice toward 28 to 32 AR days and a 98 percent or higher clean claim rate. Topics include eligibility verification, charge capture, claim scrubbing, ERA (Electronic Remittance Advice) posting, and patient billing.
HIPAA and Compliance
Compliance resources explain HIPAA Privacy Rule and Security Rule obligations under 45 CFR Parts 160 and 164, OIG (Office of Inspector General) compliance program guidance for physician practices, the False Claims Act under 31 USC 3729, the Anti-Kickback Statute, and Stark Law self-referral rules. The articles cover Business Associate Agreements (BAAs), risk analysis requirements, breach notification timelines, audit preparation, and the seven elements of an OIG-aligned coding compliance program. Practices use these guides to prepare for OCR (Office for Civil Rights) audits and CMS Targeted Probe and Educate (TPE) reviews.
Practice Management and Billing Software
Practice management content compares medical billing software platforms, EHR (Electronic Health Record) systems, and practice management tools that physician practices use to run their revenue cycle. The articles include side-by-side comparisons of Tebra, athenahealth, eClinicalWorks, AdvancedMD, DrChrono, Kareo, and other ONC-certified platforms, along with state-by-state and specialty-specific reviews of medical billing companies. Each comparison covers pricing model, integration capabilities, MIPS reporting, and the specialty workflows the platform supports best.
Specialty and State-Specific Billing
Specialty content covers the CPT codes, ICD-10 ranges, and payer rules that drive billing for cardiology, mental health, physical therapy, urgent care, primary care, chiropractic, dermatology, orthopedics, and 90+ other medical specialties. State-specific guides explain Medicaid programs (Texas STAR, California Medi-Cal, Florida SMMC, New York eMedNY), state Medicare Administrative Contractors (Novitas, First Coast Service Options, Noridian, National Government Services), and the prior authorization rules that vary by state and payer.
How These Resources Fit Together
Each article on this page is part of a larger MMBS resource library that connects denial codes to the CPT codes that trigger them, payer rules to the specialties they affect most, and compliance requirements to the day-to-day workflows that satisfy them. New guides publish two or three times per week, written by billing specialists with active AAPC credentials (CPC, COC, CPMA), and reviewed against the current CMS rules and payer policies in effect at publication.