The official 2023 ICD-10-CM Guidelines are now available and active! This updated code set is to be used for discharges and patient encounters occurring from October 1, 2022 through September 30, 2023. It’s time to get familiar with what’s new and what has changed.
To help provide a quick reference, we have split the original 118 page document into separate Chapters, each approximately 2-5 pages long and with a focus on specific code groups. By referencing our Chapter list you can more efficiently focus on the specialty you are coding, auditing or teaching.
Be sure to review Section 1.B. General Coding Guidelines for the latest ICD-10-CM general coding guidance.
See what has changed for ICD-10-CM in 2023 in the Tabular Addenda (42 pages).
FY 2023 ICD-10-CM Guidelines (as of July 2022)
Section 1.B: General Coding Guidelines
Chapter 1: Certain Infectious and Parasitic Diseases (A00-B99), U07.1, U09.9
Chapter 2: Neoplasms (C00-D49)
Chapter 3: Disease of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89) — Reserved for future guideline expansion
Chapter 4: Endocrine, Nutritional, and Metabolic Diseases (E00-E89)
Chapter 5: Mental, Behavioral and Neurodevelopmental disorders (F01 – F99)
Chapter 6: Diseases of the Nervous System (G00-G99)
Chapter 7: Diseases of the Eye and Adnexa (H00-H59)
Chapter 8: Diseases of the Ear and Mastoid Process (H60-H95) — Reserved for future guideline expansion
Chapter 9: Diseases of the Circulatory System (I00-I99)
Chapter 10: Diseases of the Respiratory System (J00-J99), U07.0
Chapter 11: Diseases of the Digestive System (K00-K95) — Reserved for future guideline expansion
Chapter 12: Diseases of the Skin and Subcutaneous Tissue (L00-L99)
Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue (M00-M99)
Chapter 14: Diseases of Genitourinary System (N00-N99)
Chapter 15: Pregnancy, Childbirth, and the Puerperium (O00-O9A)
Chapter 16: Certain Conditions Originating in the Perinatal Period (P00-P96)
Chapter 17: Congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
Chapter 18: Symptoms, signs, and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
Chapter 19: Injury, poisoning, and certain other consequences of external causes (S00-T88)
Chapter 20: External Causes of Morbidity (V00-Y99)
Chapter 21: Factors influencing health status and contact with health services (Z00-Z99)
Chapter 22: Codes for Special Purposes (U00-U85)
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