DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Block · Chapter 9

I26-I28 Pulmonary heart disease and diseases of pulmonary circulation (I26-I28)

Block I26-I28 groups 3 categories with 33 billable codes in FY2027.

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)

Neighbouring blocks

Categories
3
Billable codes
33
CC codes
6
MCC codes
12
HCC V28 codes
29
New FY2027
0

Categories in I26-I28

  • I26

    Pulmonary embolism

    Embolism (multiple) (paradoxical)pulmonary (acute) (artery) (vein) → I26.99

    • 12 billable codes
    • 12 MCC
    • 12 with HCC
  • I27

    Other pulmonary heart diseases

    Cardiopathia nigra → I27.0

    • 17 billable codes
    • 4 CC
    • 13 with HCC
  • I28

    Other diseases of pulmonary vessels

    Arteritispulmonary → I28.8

    • 4 billable codes
    • 2 CC
    • 4 with HCC

Index main terms

  • Hypertension, hypertensive (accelerated) (benign) (essential) (idiopathic) (malignant) (systemic) → I26, I27 (24 entries)
  • Embolism (multiple) (paradoxical) → I26, I27 (22 entries)
  • Disease, diseased → I27, I28 (13 entries)
  • Cor → I26, I27 (5 entries)
  • Rupture, ruptured → I28 (5 entries)
  • Stricture → I28 (5 entries)
  • Syndrome → I27 (5 entries)
  • Aneurysm (anastomotic) (artery) (cirsoid) (diffuse) (false) (fusiform) (multiple) (saccular) → I28 (4 entries)
  • Circulation → I27 (4 entries)
  • Stenosis, stenotic (cicatricial) → I28 (4 entries)
  • Endarteritis (bacterial, subacute) (infective) → I28 (2 entries)
  • Fistula (cutaneous) → I28 (2 entries)
  • Saddle → I26 (2 entries)
  • Arrillaga-Ayerza syndrome (pulmonary sclerosis with pulmonary hypertension) → I27 (1 entry)
  • Arteriosclerosis, arteriosclerotic (diffuse) (obliterans) (of) (senile) (with calcification) → I27 (1 entry)

+13 more main terms; the search box finds them by word.

Block instructions

Notes that also apply

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