DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

I68 Cerebrovascular disorders in diseases classified elsewhere

  • Header · not billable

I68 is not billable. The category heads 3 billable codes in FY2027: the 3 codes directly below it.

Index → code

  • Arteritiscerebralindiseases classified elsewhere → I68.2

Where it sits

  1. Chapter 9 Diseases of the circulatory system (I00-I99)
  2. I60-I69 Cerebrovascular diseases (I60-I69)
  3. I68 Cerebrovascular disorders in diseases classified elsewhere
Billable codes
3
Subdivisions
3
CC / MCC codes
1 / 0
HCC V28 codes
0
New FY2027
0
Index entries
4

Codes in I68

  1. I68.0
    Cerebral amyloid angiopathy
    Billable
    Code first 1

    Code first

    • underlying amyloidosis (E85.-) E85
  2. I68.2
    Cerebral arteritis in other diseases classified elsewhere
    BillableCC
    Excludes1 5, Code first 1

    Excludes1

    • cerebral arteritis (in):
    • listerosis (A32.89) A32.89
    • systemic lupus erythematosus (M32.19) M32.19
    • syphilis (A52.04) A52.04
    • tuberculosis (A18.89) A18.89

    Code first

    • underlying disease
  3. I68.8
    Other cerebrovascular disorders in diseases classified elsewhere
    Billable
    Excludes1 1, Code first 1

    Excludes1

    • syphilitic cerebral aneurysm (A52.05) A52.05

    Code first

    • underlying disease

CC/MCC: as a secondary diagnosis, unless the principal diagnosis is on the code’s PDX exclusion list (MS-DRG v44 Appendix C; list on the code card).

Sources of each column.

Instructions

Notes that also apply

Block I60-I69 instructions (Excludes1 1, Use additional code 8): printed on the block page.

Chapter 9 instructions (Excludes2 10): printed on the chapter 9 page.

Index entries

  • Apoplexia, apoplexy, apoplecticuremic → N18.9 [I68.8]
  • Angiopathia, angiopathycerebralamyloid → E85.4 [I68.0]
  • Degeneration, degenerativeartery, arterial (atheromatous) (calcareous)cerebral, amyloid → E85.4 [I68.0]
  • Arteritiscerebralindiseases classified elsewhere → I68.2

NCHS Alphabetic Index. Index first, then the Tabular List.

Hierarchy