2027 Emergency Medicine/Critical Care/Infectious Disease
A comprehensive illustrated guide to coding and reimbursement
Consolidate the coding process with the Coding Companion. Your one-stop coding resource developed exclusively for emergency medicine, urgent care, critical care, and infectious disease. This comprehensive and easy-to-use guide is updated for 2027 and organized by specialty-specific CPT® codes. Each CPT® code includes its official description and lay description, coding tip, Medicare edits, and relative value units and is cross-coded to common ICD-10-CM diagnosis codes to complete the coding process. Getting to the coding and reimbursement information you need has never been so easy.
PDF: Compare Optum Coding Companions to other industry books (165KB)
PDF: Compare Optum Coding Companions to other industry books (165KB)
- Evaluation and Management (E/M) Services Guidelines. E/M codes are used every day in your practice. With CPT® E/M Guidelines and our Optum Coding Tips, you have all the information you need to select the correct E/M code for the service provided.
- Quickly find information. All the information you need is provided, including CPT® full code descriptions, lay descriptions, coding tips, post op or follow-up days, Medicare edits including IOM references and Medicare Unlikely Edit designations (MUE), and commonly associated ICD-10-CM diagnosis codes.
- Procedure code icons. Quickly identify new, revised, add-on, and telemedicine procedure codes, making your coding process for procedures and E/M services quick and efficient.
- ICD-10-CM code icons. Icons identify age-related and laterality diagnosis codes.
- Easily determine fees for your practice and reinforce consistency in the charges. Relative value units including the practice, work, and malpractice components with the total RVUs for non-facility and facility also included.
- CPT Assistant references. Identifies that an article or discussion of the CPT® code has been in the American Medical Association’s CPT® Assistant newsletter. Use the citation to locate the correct volume.
- Avoid claim denials and/or audits. Medicare payer information includes references to Internet Only Manual (IOM) guidelines, follow-up days, and assistant-at-surgery.
- CCI edits. CPT and HCPCS procedure codes with their associated CCI edits are provided in a special section.
- Product Updates. CCI edit updates and other significant updates are available online at Optumcoding.com Product Update page for our valued Coding Companion customers.
CPT is a registered trademark of the American Medical Association.
Leanne Patterson, CPC
Leanne Patterson, CPC
Leanne Patterson has more than 20 years of experience in the health care profession. She has an extensive background in professional component coding, with proven expertise in assignment of E/M codes, general surgery coding, interventional procedures, medical record documentation improvement, and HIPAA compliance. Her experience includes serving as Director of Compliance, Practice Management, conducting chart-to-claim audits, and physician education activities. She has been responsible for coding and denial management in large multi-specialty physician practices and has been part of a team that develops content for products related to ICD-10-CM. Leanne is credentialed by and is a member of the AAPC.
Leanne Patterson has more than 20 years of experience in the health care profession. She has an extensive background in professional component coding, with proven expertise in assignment of E/M codes, general surgery coding, interventional procedures, medical record documentation improvement, and HIPAA compliance. Her experience includes serving as Director of Compliance, Practice Management, conducting chart-to-claim audits, and physician education activities. She has been responsible for coding and denial management in large multi-specialty physician practices and has been part of a team that develops content for products related to ICD-10-CM. Leanne is credentialed by and is a member of the AAPC.
Sara Cozza CCS, CPC
Sara Cozza has more than 20 years of experience in the health care profession, specializing in a wide range of coding and billing areas. Her extensive expertise encompasses coding for ambulatory surgery, hospital outpatient services, infusion and injection services, and emergency department services. Most recently Sara has taken on a pivotal role in the development of CPT and HCPCS coding logic, creating comprehensive and detailed supporting documentation for coding software. This work has significantly enhanced the accuracy and efficiency of coding processes, benefiting both healthcare providers and patients. Sara is an active member of her local AAPC (American Academy of Professional Coders) chapter, where she stays current with the latest industry trends and best practices. Additionally, she holds prestigious credentials from the American Health Information Management Association (AHIMA).
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