Table 1. New York severe maternal morbidity measurement: Indicators of severe maternal morbidity.
| Severe Maternal Morbidity | International Classification of Diseases, 9th revisions, Clinical Modification codes | |
|---|---|---|
| Developed by the Centers for Disease Control and Prevention | New York Supplemental codes* | |
| Acute myocardial infarction | 410 | |
| Acute liver disease | 570, 646.7 | |
| Acute renal failure | 584, 669.3 | |
| Adult respiratory distress syndrome | 518.5, 528.81, 518.82, 518.84, 799.1 | 518.7 |
| Embolism: | ||
| Amniotic fluid embolism | 673.1 | |
| Thrombotic embolism | 415.1, 673.0, 673.2, 673.3, 673.8 | |
| Venous thromboembolism | 453 | |
| Anemia (including sickle cell anemia with crisis) | 282.62, 282.64, 282.69 | 280, 281, 282, 283, 284.0, 284.1, 284.8, 284.9, 285 |
| Aneurysm | 441 | |
| Cardiac arrest/ventricular fibrillation | 427.41, 427.42, 427.5 | |
| Coma | 250.2, 250.3, 251.0, 572.2, 780.01, 780.03 | |
| Diabetic ketoacidosis | 250.1 | |
| Delirium | 293 | |
| Disseminated intravascular coagulation | 286.6, 286.9, 666.3 | 286.7 |
| Eclampsia | 642.6 | |
| Hemorrhage | 640.0, 640.8, 640.9, 641.1, 641.2, 641.3, 641.8, 641.9, 666^ | |
| Heart complications | 415.0, 428.0, 428.21, 428.23, 428.31, 428.33, 428.41, 428.43, 428.9 | |
| Heart failure during procedure or surgery | 669.4, 997.1 | |
| Internal injuries of thorax, abdomen, and pelvis | 860–869 | |
| Intracranial injuries | 800, 801, 803, 804, 851–854 | |
| Liver and biliary tract disorders in pregnancy | 646.7 | |
| Oliguria | 788.5, 646.2, 997.5 | |
| Puerperal cerebrovascular disorders | 430, 431, 432, 433, 434, 436, 437, 671.5, 674.0, 997.2, 999.2 | 325, 346.6, 348.1, 348.3, 348.5, 997.01, 997.02 |
| Pulmonary edema | 428.1, 518.4 | 514 |
| Sepsis | 038, 995.91, 995.92, 670.2 | 112.5, 659.3 |
| Severe anesthesia complications | 668.0, 668.1, 668.2 | |
| Shock | 669.1, 785.5, 995.0, 995.4, 998.0 | 995.94, 999.4 |
| Status asthmaticus | 493.01, 493.11, 493.21, 493.91 | |
| Status epilepticus | 345.3 | |
| Thrombocytopenia | 287.3–5, 287.8–9, 446.6, 289.84 | |
| Thyrotoxic crisis | 242 | |
| Uterine rupture | 665.0, 665.1, 665.5, 665.7–9 | |
| Urea and creatine | 270.6, 790.5 | |
| Procedure codes | ||
| Blood transfusion | 99.0 | |
| Cardio monitoring | 89.6 | |
| Conversion of cardiac rhythm | 99.6 | |
| Hysterectomy | 68.3–68.9 | |
| Operations on heart and pericardium | 35, 36, 37, 39. | |
| Temporary tracheostomy | 31.1 | |
| Ventilation | 93.9, 96.01–96.05, 96.7 | |
*Records with these codes were classified as severe maternal morbidity conditional on longer hospital stay and admission to intensive care.
^ One code in this subgroup (666.3) is included in the CDC list of indicators of severe maternal morbidity.