I28.8Other diseases of pulmonary vessels

I28.8 is the ICD-10-CM diagnosis code for other diseases of pulmonary vessels. It belongs to category I28 (other diseases of pulmonary vessels), block I26-I28 (pulmonary heart disease and diseases of pulmonary circulation) and chapter 9 (diseases of the circulatory system). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within I28, choose I28.8 (Other diseases of pulmonary vessels) only when documentation doesn't support a more specific option: arteriovenous fistula of pulmonary vessels (I28.0), aneurysm of pulmonary artery (I28.1) and disease of pulmonary vessels, unspecified (I28.9).

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

In MS-DRG v44.0, it is part of the grouping logic for DRG 314 (Other Circulatory System Diagnoses with MCC, relative weight 2.0873), DRG 315 (Other Circulatory System Diagnoses with CC, relative weight 0.9508) and DRG 316 (Other Circulatory System Diagnoses without CC/MCC, relative weight 0.6677), in MDC 05 (Diseases and Disorders of the Circulatory System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Before ICD-10, this condition was coded in ICD-9-CM as 417.8 (other specified diseases of pulmonary circulation).