I28

Other diseases of pulmonary vessels

FY2027Chapter 9: Diseases of the circulatory system/I26–I28 Pulmonary heart disease and diseases of pulmonary circulation

Non-billable headerNot valid on its own. Use one of the more specific codes under it.

I28 is a non-billable ICD-10-CM code category for other diseases of pulmonary vessels. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are I28.0 Arteriovenous fistula of pulmonary vessels; I28.1 Aneurysm of pulmonary artery; I28.8 Other diseases of pulmonary vessels and I28.9 Disease of pulmonary vessels, unspecified. Its coding notes include 10 Excludes2 entries.

Excludes2

Not included here. Both codes may be reported if the patient has both conditions.

Also from chapter/block level (10 notes)
Inherited from Chapter 9 Diseases of the circulatory system
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
  • systemic connective tissue disorders (M30-M36)
  • transient cerebral ischemic attacks and related syndromes (G45.-)

More specific codes under I28 4