DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

I35 Nonrheumatic aortic valve disorders

  • Header · not billable

I35 is not billable. The category heads 5 billable codes in FY2027: the 5 codes directly below it.

Index → code

  • Flint murmur (aortic insufficiency) → I35.1
  • Austin Flint murmur (aortic insufficiency) → I35.1
  • Ectasia, ectasisannuloaortic → I35.8

Where it sits

  1. Chapter 9 Diseases of the circulatory system (I00-I99)
  2. I30-I5A Other forms of heart disease (I30-I5A)
  3. I35 Nonrheumatic aortic valve disorders
Billable codes
5
Subdivisions
5
CC / MCC codes
0 / 0
HCC V28 codes
0
New FY2027
0
Index entries
21

Codes in I35

  1. I35.0
    Nonrheumatic aortic (valve) stenosis
    Billable
  2. I35.1
    Nonrheumatic aortic (valve) insufficiency
    Billable
    Inclusion terms 2

    Inclusion terms

    • Nonrheumatic aortic (valve) incompetence NOS
    • Nonrheumatic aortic (valve) regurgitation NOS
  3. I35.2
    Nonrheumatic aortic (valve) stenosis with insufficiency
    Billable
  4. I35.8
    Other nonrheumatic aortic valve disorders
    Billable
  5. I35.9
    Nonrheumatic aortic valve disorder, unspecified
    Billable

Sources of each column.

Instructions

At I35

Excludes2

  • aortic valve disorder of unspecified cause but with diseases of mitral and/or tricuspid valve(s) (I08.-) I08
  • aortic valve disorder specified as congenital (Q23.0, Q23.1) Q23.0 Q23.1
  • aortic valve disorder specified as rheumatic (I06.-) I06
  • hypertrophic subaortic stenosis (I42.1) I42.1

Code also

  • , if applicable, bicuspid aortic valve (Q23.81) Q23.81

Notes that also apply

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

Index entries

  • Austin Flint murmur (aortic insufficiency) → I35.1
  • Flint murmur (aortic insufficiency) → I35.1
  • Stenosis, stenotic (cicatricial)aortic (valve) → I35.0
  • Insufficiency, insufficientaortic (valve) → I35.1
  • Murmur (cardiac) (heart) (organic)Flint → I35.1
  • Ectasia, ectasisannuloaortic → I35.8
  • Endocarditis (chronic) (marantic) (nonbacterial) (thrombotic) (valvular)aortic (heart) (nonrheumatic) (valve) → I35.8
  • Failure, failedaortic (valve) → I35.8
  • Disease, diseasedaortic (heart) (valve) → I35.9
  • Lesion(s) (nontraumatic)aortic (valve) → I35.9
  • Stenosis, stenotic (cicatricial)aortic (valve)specified cause NEC → I35.0
  • Insufficiency, insufficientaortic (valve)specified cause NEC → I35.1
  • Stenosis, stenotic (cicatricial)aortic (valve)with insufficiency → I35.2
  • Aneurysm (anastomotic) (artery) (cirsoid) (diffuse) (false) (fusiform) (multiple) (saccular)aorta, aortic (nonsyphilitic)valve (heart) → I35.8
  • Atheroma, atheromatousaorta, aorticvalve → I35.8
  • Endocarditis (chronic) (marantic) (nonbacterial) (thrombotic) (valvular)aortic (heart) (nonrheumatic) (valve)arteriosclerotic → I35.8
  • Endocarditis (chronic) (marantic) (nonbacterial) (thrombotic) (valvular)aortic (heart) (nonrheumatic) (valve)specified cause NEC → I35.8
  • Rupture, rupturedaorta, aorticvalve or cusp → I35.8
  • Disease, diseasedheart (organic)aortic (valve) → I35.9
  • Insufficiency, insufficientaortic (valve)withstenosis → I35.2
  • Deformityaorticcusp or valve (congenital)acquired → I35.8

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

Hierarchy