1. Introduction to Coding and Coding Professions.2. An Overview of ICD-10-CM.3. ICD-10-CM Coding Conventions.4. Steps in Diagnostic Code Selection.5. Diagnostic Coding Guidelines.6. Infectious and Parasitic Diseases.7. Neoplasms.8. Diseases of the Blood and Blood-Forming Organs.9. Endocrine, Nutritional, and Metabolic Diseases.10. Mental, Behavioral, and Neurodevelopmental Disorders.11. Diseases of the Nervous System.12. Disorders of the Eye and Adnexa.13. Diseases of the Ear and Mastoid Process.14. Diseases of the Circulatory System.15. Diseases of the Respiratory System.16. Diseases of the Digestive System.17. Diseases of the Skin and Subcutaneous Tissue.18. Diseases of the Musculoskeletal System and Connective Tissue.19. Diseases of the Genitourinary System.20. Pregnancy, Childbirth, and the Puerperium.21. Certain Conditions Originating in the Perinatal Period.22. Congenital Malformations, Deformations, and Chromosomal Abnormalities.23. Symptoms, Signs, and Abnormal Clinical Laboratory Findings.24. Injury, Poisoning, and Certain Other Consequences of External Causes.25. External Causes of Morbidity.26. Factors Influencing Health Status and Contact with Health Services and Coding of COVID and Vaping. 27. Introduction to ICD-10-PCS.28. Medical and Surgical Section.29. Obstetrics Section.30. Placement Section.31. Administration Section.32. Measurement and Monitoring Section.33. Extracorporeal Assistance and Performance and Extracorporeal Therapies Sections.34. Osteopathic, Other Procedures, and Chiropractic Sections.35. Imaging, Nuclear Medicine, and Radiation Oncology Sections.36. Physical Rehabilitation and Diagnostic Audiology Section.37. Mental Health and Substance Abuse Treatment.38. New Technology Section.