Change the titles of MS-DRGs 124 and 125 from “Other Disorders of the Eye, with and without MCC, respectively,” to “Other Disorders of the Eye with MCC or Thrombolytic Agent, with without MCC, respectively” to better reflect the assigned procedures.
MDC 04: Diseases and Disorders of the Respiratory System: Ultrasound Accelerated Thrombolysis for Pulmonary Embolism
A request was made to reassign cases reporting ultrasound accelerated thrombolysis (USAT) with administration of thrombolytic(s) for the treatment of pulmonary embolism (PE) from MS-DRGs 166, 167, and 168 (Other Respiratory O.R. Procedures with MCC, with CC, and without CC/MCC, respectively) to MS-DRGs 163, 164, and 165 (Major Chest Procedures with MCC, with CC, and without CC/MCC, respectively).
Clinical and data analyses support creating a new base MS-DRG for cases reporting a principal diagnosis of PE and USAT or standard catheter directed thrombolysis (CDT) procedures with or without thrombolytics. CMS finalized their proposal to create a new MS-DRG 173 (Ultrasound Accelerated and Other Thrombolysis with Principal Diagnosis Pulmonary Embolism).
MDC 04: Respiratory Infections and Inflammations Logic
There are two logic lists for case assignment to MS-DRGs 177, 178, and 179 (Respiratory Infections and Inflammations with MCC, with CC, without CC/MCC, respectively). All diagnosis codes in the first logic list are designated as MCCs.
Currently, if the principal diagnosis is from the second logic list and any of the diagnoses from the first logic list are also on the claim, the case would be assigned to MS-DRG 177. This is inconsistent with how other similar logic lists function in the ICD-10 grouper software. Therefore, CMS proposed to correct the logic for cases assigned to MS-DRG 177 by excluding the 15 diagnosis codes in the first logic list from acting as an MCC when reported as a secondary diagnosis when the principal diagnosis is from the second logic list.
CMS finalized their proposal with the modification of excluding 11 diagnosis codes in the first logic list from acting as an MCC when any one of the listed codes is reported as a secondary diagnosis with a diagnosis code in the second logic list.
The 11 diagnosis codes includes A48.1 (Legionnaire’s disease), J15.0 (Pneumonia due to Klebsiella pneumoniae), J15.1 (Pneumonia due to Pseudomonas), J15.20 (Pneumonia due staphylococcus, unspecified), J15.211 (Pneumonia due to Methicillin susceptible Staphylococcus aureus), J15.212 (Pneumonia due Methicillin resistant Staphylococcus aureus), J15.29 (Pneumonia due to other staphylococcus), J15.5 (Pneumonia due to Escherichia coli), J15.61 (Pneumonia due to Acinetobacter baumannii), J15.69 (Pneumonia due to other Gram-negative bacteria), and J15.8 (Pneumonia due to other specified bacteria).
The five influenza codes in the first logic list (J10.00, J10.01, J10.08, J11.00, or J11. 08) will continue to be allowed to act as an MCC with a principal diagnosis from the second logic list in specific clinical scenarios.
MDC 06: Diseases and Disorders of the Digestive System: Appendicitis
ICD-10-CM diagnosis codes K35.20 (Acute appendicitis with generalized peritonitis, without abscess) and K35.21 (Acute appendicitis with generalized peritonitis, with abscess) will no longer be effective October 1, 2023. At that time, six new diagnosis codes describing acute appendicitis with generalized peritonitis, with and without perforation or abscess will become effective. The new codes are assigned to MS-DRGs 371, 372, and 373 (Major Gastrointestinal Disorders and Peritoneal Infections with MCC, with CC, and without MCC/CC, respectively).
CMS notes that clinically both localized and generalized peritonitis in association with an appendectomy require the same level of patient care and believe the distinction between “complicated” versus “uncomplicated” is no longer meaningful regarding resource consumption. After consideration of comments received, CMS finalized their proposals to:
