ICD-10 code for postoperative hypertension

The ICD-10-CM code for postoperative hypertension is I97.3 (Postprocedural hypertension).

Within I97 (intraoperative and postprocedural complications and disorders of circulatory system, not elsewhere classified), I97.3 is specifically for postprocedural hypertension. Related codes cover Postcardiotomy syndrome (I97.0), other postprocedural cardiac functional disturbances (I97.1), Postmastectomy lymphedema syndrome (I97.2), intraoperative hemorrhage and hematoma of a circulatory system organ or structure complicating a procedure (I97.4), accidental puncture and laceration of a circulatory system organ or structure during a procedure (I97.5), postprocedural hemorrhage, hematoma and seroma of a circulatory system organ or structure following a procedure (I97.6), intraoperative cardiac functional disturbances (I97.7) and other intraoperative and postprocedural complications and disorders of the circulatory system, not elsewhere classified (I97.8).

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 919 (Complications of Treatment with MCC, relative weight 1.763), DRG 920 (Complications of Treatment with CC, relative weight 0.9975) and DRG 921 (Complications of Treatment without CC/MCC, relative weight 0.6722), in MDC 21 (Injuries, Poisonings and Toxic Effects of Drugs), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.