- 3 categories
- 8 billable codes
I00-I99 · FY2027
Chapter 9 Diseases of the circulatory system (I00-I99)
Chapter 9 holds 80 categories in 10 blocks, with 1,433 billable codes in FY2027, 9 of them new this year.
Jump to block
Chapters
- Blocks
- 10
- Categories
- 80
- Billable codes
- 1,433
- New FY2027
- 9
- Instructions
- 10
Blocks and categories
- 5 categories
- 27 billable codes
- 7 categories
- 18 billable codes
- 6 categories
- 94 billable codes
- 3 categories
- 33 billable codes
- 24 categories
- 146 billable codes
- 9 new
- 9 categories
- 410 billable codes
- 10 categories
- 344 billable codes
- 9 categories
- 304 billable codes
- 4 categories
- 49 billable codes
Chapter instructions
Excludes2
- certain conditions originating in the perinatal period (P04-P96) P04 P96
- certain infectious and parasitic diseases (A00-B99) A00 B99
- complications of pregnancy, childbirth and the puerperium (O00-O9A) O00 O9A
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99) Q00 Q99
- endocrine, nutritional and metabolic diseases (E00-E88) E00 E88
- injury, poisoning and certain other consequences of external causes (S00-T88) S00 T88
- neoplasms (C00-D49) C00 D49
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94) R00 R94
- systemic connective tissue disorders (M30-M36) M30 M36
- transient cerebral ischemic attacks and related syndromes (G45.-) G45