ICD-10-CM · FY2027 edition · Oct 1, 2026 – Sep 30, 2027
ICD-10 codes lookup, FY2027 edition
Diagnosis code lookup: any of the 74,879 billable codes of ICD-10-CM FY2027, in effect Oct 1, 2026 – Sep 30, 2027.
Try an ICD-10 lookup: E11.9 S72.001A back pain copd
ICD code lookup: codes search the FY2027 code list; words search the NCHS Alphabetic Index and category titles. Runs in your browser.
- Billable codes
- 74,879
- Headers (not billable)
- 23,524
- Categories
- 1,921
- New billable codes
- 190
- Billable in FY2026
- 74,719
- No longer billable
- 15
ICD-10 list of codes by chapter
22 chapters- Chapter 1A00-B99Certain infectious and parasitic diseases (A00-B99)167 categories · 1,068 billable codes
- Chapter 2C00-D49Neoplasms (C00-D49)141 categories · 1,730 billable codes · 3 new
- Chapter 3D50-D89Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89)35 categories · 324 billable codes · 2 new
- Chapter 4E00-E89Endocrine, nutritional and metabolic diseases (E00-E89)73 categories · 973 billable codes · 2 new
- Chapter 5F01-F99Mental, Behavioral and Neurodevelopmental disorders (F01-F99)72 categories · 872 billable codes · 1 new
- Chapter 6G00-G99Diseases of the nervous system (G00-G99)68 categories · 700 billable codes
- Chapter 7H00-H59Diseases of the eye and adnexa (H00-H59)40 categories · 2,677 billable codes
- Chapter 8H60-H95Diseases of the ear and mastoid process (H60-H95)24 categories · 653 billable codes
- Chapter 9I00-I99Diseases of the circulatory system (I00-I99)80 categories · 1,433 billable codes · 9 new
- Chapter 10J00-J99Diseases of the respiratory system (J00-J99)65 categories · 366 billable codes · 6 new
- Chapter 11K00-K95Diseases of the digestive system (K00-K95)73 categories · 863 billable codes · 6 new
- Chapter 12L00-L99Diseases of the skin and subcutaneous tissue (L00-L99)74 categories · 1,001 billable codes · 1 new
- Chapter 13M00-M99Diseases of the musculoskeletal system and connective tissue (M00-M99)79 categories · 6,687 billable codes · 31 new
- Chapter 14N00-N99Diseases of the genitourinary system (N00-N99)85 categories · 838 billable codes · 2 new
- Chapter 15O00-O9APregnancy, childbirth and the puerperium (O00-O9A)72 categories · 2,481 billable codes · 44 new
- Chapter 16P00-P96Certain conditions originating in the perinatal period (P00-P96)59 categories · 463 billable codes
- Chapter 17Q00-QA1Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA1)89 categories · 900 billable codes · 6 new
- Chapter 18R00-R99Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)89 categories · 774 billable codes · 1 new
- Chapter 19S00-T88Injury, poisoning and certain other consequences of external causes (S00-T88)171 categories · 41,187 billable codes · 60 new
- Chapter 20V00-Y99External causes of morbidity (V00-Y99)273 categories · 7,461 billable codes
- Chapter 21Z00-Z99Factors influencing health status and contact with health services (Z00-Z99)90 categories · 1,425 billable codes · 16 new
- Chapter 22U00-U85Codes for special purposes (U00-U85)2 categories · 3 billable codes
FY2027 changes
All changesCounted from the NCHS order files of FY2026 and FY2027.
- Codes added
- +238
- Codes deleted
- −21
- Now headers
- 15
- Titles revised
- 4
No longer billable since October 1, 2026
Billable in FY2026; in FY2027 each heads more specific codes.
- D69.1 Qualitative platelet defects now heads 2 billable codes
- I42.0 Dilated cardiomyopathy now heads 3 billable codes
- I42.8 Other cardiomyopathies now heads 2 billable codes
- I49.8 Other specified cardiac arrhythmias now heads 3 billable codes
- M72.2 Plantar fascial fibromatosis now heads 3 billable codes
- M86.8X1 Other osteomyelitis, shoulder now heads 3 billable codes
- M86.8X2 Other osteomyelitis, upper arm now heads 3 billable codes
- M86.8X3 Other osteomyelitis, forearm now heads 3 billable codes
- M86.8X4 Other osteomyelitis, hand now heads 3 billable codes
- M86.8X5 Other osteomyelitis, thigh now heads 3 billable codes
- M86.8X6 Other osteomyelitis, lower leg now heads 3 billable codes
- M86.8X7 Other osteomyelitis, ankle and foot now heads 3 billable codes
- M86.8X8 Other osteomyelitis, other site now heads 3 billable codes
- Z68.1 Body mass index [BMI] 19.9 or less, adult now heads 2 billable codes
- Z87.890 Personal history of sex reassignment now heads 5 billable codes
New categories in FY2027
Code pages
Billable codes with a page of their own; every other code is a row of its category and has a card in the search.
- E11.9 Type 2 diabetes mellitus without complications
- E55.9 Vitamin D deficiency, unspecified
- E78.5 Hyperlipidemia, unspecified
- F32.9 Major depressive disorder, single episode, unspecified
- F41.1 Generalized anxiety disorder
- F41.9 Anxiety disorder, unspecified
- G30.9 Alzheimer's disease, unspecified
- J18.9 Pneumonia, unspecified organism
- J44.1 Chronic obstructive pulmonary disease with (acute) exacerbation
- J44.9 Chronic obstructive pulmonary disease, unspecified
- K21.9 Gastro-esophageal reflux disease without esophagitis
- M54.50 Low back pain, unspecified
- N39.0 Urinary tract infection, site not specified
- R29.6 Repeated falls
- R51.9 Headache, unspecified
- Z00.00 Encounter for general adult medical examination without abnormal findings
Guide
All guidesCode titles, notes and Index entries are printed exactly as NCHS publishes them, next to 23,524 headers; billable status, MS-DRG CC/MCC, Medicare Code Editor edits, POA exemption and CMS-HCC V28 come from the CMS files of the same year. The guides explain how ICD codes are read: categories, 7th characters and Excludes notes, with the numbers of this edition.