DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

I28 Other diseases of pulmonary vessels

  • Header · not billable

I28 is not billable. The category heads 4 billable codes in FY2027: the 4 codes directly below it.

Index → code

  • Arteritispulmonary → I28.8
  • Shuntarteriovenous, pulmonary (acquired) → I28.0
  • Endarteritis (bacterial, subacute) (infective)pulmonary → I28.8

Where it sits

  1. Chapter 9 Diseases of the circulatory system (I00-I99)
  2. I26-I28 Pulmonary heart disease and diseases of pulmonary circulation (I26-I28)
  3. I28 Other diseases of pulmonary vessels
Billable codes
4
Subdivisions
4
CC / MCC codes
2 / 0
HCC V28 codes
4
New FY2027
0
Index entries
27

Codes in I28

  1. I28.0
    Arteriovenous fistula of pulmonary vessels
    BillableCC226
    Excludes1 1

    Excludes1

    • congenital arteriovenous fistula (Q25.72) Q25.72
  2. I28.1
    Aneurysm of pulmonary artery
    BillableCC226
    Excludes1 2

    Excludes1

    • congenital aneurysm (Q25.79) Q25.79
    • congenital arteriovenous aneurysm (Q25.72) Q25.72
  3. I28.8
    Other diseases of pulmonary vessels
    Billable226
    Inclusion terms 5

    Inclusion terms

    • Pulmonary arteritis
    • Pulmonary endarteritis
    • Rupture of pulmonary vessels
    • Stenosis of pulmonary vessels
    • Stricture of pulmonary vessels
  4. I28.9
    Disease of pulmonary vessels, unspecified
    Billable226

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

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

Index entries

  • Shuntarteriovenous, pulmonary (acquired) → I28.0
  • Aneurysm (anastomotic) (artery) (cirsoid) (diffuse) (false) (fusiform) (multiple) (saccular)lung (pulmonary artery) → I28.1
  • Aneurysm (anastomotic) (artery) (cirsoid) (diffuse) (false) (fusiform) (multiple) (saccular)pulmonary → I28.1
  • Arteritispulmonary → I28.8
  • Endarteritis (bacterial, subacute) (infective)pulmonary → I28.8
  • Ulcer, ulcerated, ulcerating, ulceration, ulcerativeendocarditis (acute) (chronic) (subacute) → I28.8
  • Fistula (cutaneous)arteriovenous (acquired) (nonruptured)pulmonary → I28.0
  • Fistula (cutaneous)pulmonaryarteriovenous → I28.0
  • Dilatationpulmonaryartery (idiopathic) → I28.8
  • Endarteritis (bacterial, subacute) (infective)obliteranspulmonary → I28.8
  • Rupture, rupturedarterypulmonary → I28.8
  • Rupture, rupturedpulmonaryartery → I28.8
  • Rupture, rupturedpulmonaryvein → I28.8
  • Rupture, rupturedpulmonaryvessel → I28.8
  • Rupture, rupturedvessel (blood)pulmonary → I28.8
  • Stenosis, stenotic (cicatricial)pulmonary (artery) (congenital)acquired → I28.8
  • Stenosis, stenotic (cicatricial)pulmonary (artery) (congenital)vein, acquired → I28.8
  • Stenosis, stenotic (cicatricial)pulmonary (artery) (congenital)vessel NEC → I28.8
  • Stricturepulmonary, pulmonicvein, acquired → I28.8
  • Stricturepulmonary, pulmonicvessel NEC → I28.8
  • Disease, diseasedpulmonaryartery → I28.9
  • Aneurysm (anastomotic) (artery) (cirsoid) (diffuse) (false) (fusiform) (multiple) (saccular)arteriovenous (congenital)acquiredpulmonary → I28.0
  • Aneurysm (anastomotic) (artery) (cirsoid) (diffuse) (false) (fusiform) (multiple) (saccular)pulmonaryarteriovenousacquired → I28.0
  • Stenosis, stenotic (cicatricial)artery NECpulmonary (congenital)acquired → I28.8
  • Stricturearterypulmonary (congenital)acquired → I28.8
  • Stricturepulmonary, pulmonicartery (congenital)acquired → I28.8
  • Stricturepulmonary, pulmonicartery (congenital)noncongenital → I28.8

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

Hierarchy