CDI and Coding Gap Analyses
MS-DRG, APR-DRG and IR-DRG Examples
Case | DRG SYSTEM | Hospital DRG & Relative Weight | Hospital DRG SOI/ROM | cdiWorks DRG & Relative Weight | cdiWorks DRG SOI/ROM | Comments | ||
---|---|---|---|---|---|---|---|---|
1 | APR-DRG | 004-3 | 10.0706 | 3/3 | 004-4 | 6.5399 | 4/3 | Queries were generated for 2 secondary diagnoses in a patient with tracheostomy procedure. Secondary diagnoses were captured and shifted APR-DRG from 004-3 (SOI 3) to 004-4 (SOI 4). |
2 | APR-DRG | 720-4 | 3.2003 | 4/3 | 710-4 | 6.3204 | 4/4 | Query was generated for procedure in patient with sepsis. Documentation of procedure was clarified. This changed medical APR-DRG 720-4 to surgical APR-DRG 710-4. |
3 | APR-DRG | 221-3 | 3.2113 | 3/3 | 221-4 | 6.5399 | 4/3 | Appeal letter was submitted for a secondary diagnosis that was deleted by third party payer. Based on clinical indicators in the appeal letter, the decision by third party payer was overturned and shifted APR-DRG from 221-3 (SOI 3) to 221-4 (SOI 4). |
4 | APR-DRG | 720-4 | 3.2003 | 4/3 | 130-4 | 6.0728 | 4/4 | Coding change was made to assign pneumonia as principal diagnosis and sepsis as secondary diagnosis because clinical indicators did not support sepsis being present on admission. This changed APR-DRG from 720-4 to 130-4. |
5 | MS-DRG | 871 | 1.8564 | 3/3 | 853 | 5.0571 | 3/3 | Query was generated to clarify depth of debridement of pressure injury. Documentation of procedure was clarified. This changed medical MS-DRG 871 to surgical MS-DRG 853. |
6 | MS-DRG | 682 | 1.4843 | 4/4 | 207 | 5.4845 | 3/3 | Query was generated to clarify if pneumonia was reason for admission. Patient presented with acute kidney injury, chronic respiratory failure and was on mechanical ventilation. Pneumonia was captured as principal diagnosis, which changed MS-DRG from 682 to 207. |
7 | MS-DRG | 908 | 1.9928 | 1/2 | 907 | 4.2161 | 4/4 | Coding changes were made to capture acute septic encephalopathy, acute respiratory failure and pneumonia. These secondary diagnoses shifted MS-DRG from 908 to 907. |
8 | MS-DRG | 812 | 0.8828 | 2/4 | 871 | 1.8564 | 3/3 | Queries were generated for sepsis and acute septic encephalopathy. Principal diagnosis of sepsis and secondary diagnosis of acute septic encephalopathy were captured, which changed MS-DRG from 812 to 871. |
IR-DRG Examples
Case | DRG SYSTEM | Hospital DRG & Relative Weight | Hospital DRG SOI/ROM | Hospital LOS | cdiWorks DRG & Relative Weight | cdiWorks DRG SOI/ROM | CDIworks LOS | Comments | ||
---|---|---|---|---|---|---|---|---|---|---|
1 | IR-DRG | 081601 | 1.2732 | 1/1 | 11 | 081603 | 4.9866 | 3/3 | 7 | Query was generated for acute kidney injury, which shifted IR-DRG from 081601 (SOI 1/ROM 1) to 081603 (SOI 3/ROM 3).Patient was stabilized and should have been discharged on day 7, instead of day 11. |
2 | IR-DRG | 044181 | 0.3366 | 1/1 | 7 | 044112 | 2.0041 | 2/1 | 5 | Query was generated for acute respiratory failure, which changed IR-DRG from 044181 (SOI 1) to 044112 (SOI 2). Patient was stabilized and should have been discharged on day 5, instead of day 7. |
3 | IR-DRG | 014141 | 0.7984 | 1/2 | 10 | 014142 | 1.3175 | 2/2 | 4 | Coding Change was made to capture type 2 diabetes mellitus with hyperglycemia, which shifted IR-DRG from 014141 (SOI 1) to 014142 (SOI 2). Patient was stabilized and should have been discharged on day 4, instead of day 10. |
4 | IR-DRG | 014141 | 0.7984 | 1/1 | 7 | 014143 | 3.565 | 3/2 | 7 | Query was generated for cerebral vasculitis, which shifted IR-DRG from 014141 (SOI 1/ROM 1) to 014143 (SOI 3/ROM 2). |
5 | IR-DRG | 051201 | 1.9627 | 1/1 | 2 | 051202 | 2.7972 | 2/1 | 2 | Coding change was made to capture hemiplegia, which shifted IR-DRG from 051201 (SOI 1) to 051202 (SOI 2). |
6 | IR-DRG | 064171 | 0.2674 | 1/1 | 23 | 064172 | 0.3780 | 2/1 | 11 | Query was generated for hypotension, which shifted IR-DRG from 064171 (SOI 1) to 064172 (SOI 2). Patient was stabilized and should have been discharged on day 11, instead of day 23. |
7 | IR-DRG | 061131 | 0.6951 | 1/1 | 4 | 061111 | 1.5054 | 1/1 | 4 | Coding change was made to capture peritoneal adhesions and laparoscopy, surgical, enterolysis. These codes changed IR-DRG from 061131 to 061111. |
8 | IR-DRG | 084182 | 1.1483 | 2/1 | 10 | 084183 | 2.1138 | 3/3 | 10 | Coding change was made to capture acute encephalopathy, which shifted IR-DRG from 084182 (SOI 2) to 084183 (SOI 3). |