The International Classification of Illnesses, 10th Revision, Clinical Modification (ICD-10-CM) is a way to organize illnesses and other health problems. It is used by doctors to identify and code diseases, as well as by insurance companies and other groups to pay for healthcare.
The ICD-10-CM code set is changed every year to reflect new medical knowledge and changes in how medicine is done. Over 70,000 codes are in the ICD-10-CM code set for 2023. These codes are grouped into 21 parts.
ICD-10 diagnosis codes list pdf 2024
https://www.cms.gov/files/document/fy-2024-icd-10-cm-coding-guidelines.pdf
The following table lists the chapters of the ICD-10-CM code set:
| Chapter | Description |
|---|---|
| A | Certain infectious and parasitic diseases |
| B | Neoplasms |
| C | Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism |
| D | Endocrine, nutritional, and metabolic diseases |
| E | Mental, behavioral, and neurodevelopmental disorders |
| F | Diseases of the nervous system |
| G | Diseases of the eye and adnexa |
| H | Diseases of the ear and mastoid process |
| I | Diseases of the circulatory system |
| J | Diseases of the respiratory system |
| K | Diseases of the digestive system |
| L | Diseases of the skin and subcutaneous tissue |
| M | Diseases of the musculoskeletal system and connective tissue |
| N | Diseases of the genitourinary system |
| O | Pregnancy, childbirth and the puerperium |
| P | Certain conditions originating in the perinatal period |
| Q | Congenital malformations, deformations and chromosomal abnormalities |
| R | Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified |
| S | Injury, poisoning and certain other consequences of external causes |
| T | External causes of morbidity and mortality |
| U | Certain factors influencing health status and contact with health services |
| V | Supplementary classification of factors influencing health and contact with health services |
| W | Supplementary classification of external causes of injury, poisoning and other consequences of external causes |
| X | Supplementary classification of factors influencing health status and contact with health services |
| Y | Supplementary classification of external causes of injury, poisoning and other consequences of external causes |
| Z | Supplementary classification of factors influencing health status and contact with health services |
To access the full ICD-10-CM code set, you can visit the Centers for Disease Control and Prevention (CDC) website. The CDC also provides a variety of resources to help healthcare providers and other users understand and use the ICD-10-CM code set.
Using ICD-10 Diagnosis Codes
ICD-10 diagnosis numbers are used by doctors and nurses to figure out what diseases a person has and how to code them. When a person goes to a doctor or nurse, the doctor or nurse will look at the person’s complaints and medical background. The doctor or nurse will then give the patient one or more ICD-10 numbers based on what’s wrong with them.
Insurance companies and other groups also use ICD-10 codes to pay for health care costs. When a patient sends a claim to their insurance company, the insurance company will use the ICD-10 numbers to figure out how much to pay the patient and the healthcare provider.
New ICD-10 Codes for 2023
The 2023 ICD-10-CM code set includes a number of new codes, including:
- Codes for new diseases and conditions, such as vaping-associated lung injury and multisystem inflammatory syndrome in children (MIS-C)
- Codes for new diagnostic procedures and tests
- Codes for new social determinants of health (SDOH), such as housing insecurity and food insecurity
- Codes for new medications and other treatments
Conclusion
The ICD-10-CM code set is an essential tool for healthcare providers, insurance companies, and other organizations. It is used to diagnose and code diseases and to reimburse healthcare costs. The 2023 ICD-10-CM code set includes a number of new codes to reflect changes in medical knowledge and practice.