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ICD-10-CM
ICD-10-PCS
Index
Drugs
Neoplasms
DRG
Rules
HCPCS
ICD-9 ↔ 10
What's new in 2027
ICD-10-CM
ICD-10-PCS
Index
Drugs
Neoplasms
DRG
Rules
HCPCS
ICD-9 ↔ 10
What's new in 2027
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ICD-10-CM
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Coding rules
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Non-billable / header codes
23,524 codes
Non-billable / header codes
Category and subcategory headers that need more characters before they can be reported.
Source: ICD-10-CM FY2027.
Chapter 1: Certain infectious and parasitic diseases
241
Chapter 2: Neoplasms
451
Chapter 3: Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism
79
Chapter 4: Endocrine, nutritional and metabolic diseases
297
Chapter 5: Mental, Behavioral and Neurodevelopmental disorders
241
Chapter 6: Diseases of the nervous system
232
Chapter 7: Diseases of the eye and adnexa
789
Chapter 8: Diseases of the ear and mastoid process
218
Chapter 9: Diseases of the circulatory system
374
Chapter 10: Diseases of the respiratory system
112
Chapter 11: Diseases of the digestive system
254
Chapter 12: Diseases of the skin and subcutaneous tissue
206
Chapter 13: Diseases of the musculoskeletal system and connective tissue
2,020
Chapter 14: Diseases of the genitourinary system
209
Chapter 15: Pregnancy, childbirth and the puerperium
598
Chapter 16: Certain conditions originating in the perinatal period
102
Chapter 17: Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders
195
Chapter 18: Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
189
Chapter 19: Injury, poisoning and certain other consequences of external causes
13,138
Chapter 22: Codes for special purposes
2
Chapter 20: External causes of morbidity
3,141
Chapter 21: Factors influencing health status and contact with health services
436