| W051 | WNL | Within Normal Limits | Lab or clinical result is normal | Vital signs reported as WNL |
| W052 | WNT | Wingless-type MMTV Integration Site Family | Gene family involved in cell signaling | WNT studied in cancer research |
| W053 | WBC | White Blood Cell | Immune system cell count | WBC elevated in bacterial infection |
| W054 | WCC | White Cell Count | Total leukocyte count | WCC monitored in infection |
| W055 | WNV | West Nile Virus | Mosquito-borne virus | WNV infection confirmed by serology |
| W056 | WAP | Wheezing Associated Phenomenon | Symptom of airway obstruction | WAP observed in asthma attack |
| W057 | WAS | Wiskott-Aldrich Syndrome | X-linked immunodeficiency | WAS diagnosed in pediatric hematology |
| W058 | WAT | Waist-to-Height Ratio | Obesity measurement | WAT used in metabolic syndrome assessment |
| W059 | WB | Whole Blood | Unseparated blood sample | WB used for transfusion or lab tests |
| W060 | WBRT | Whole Brain Radiotherapy | Radiation therapy for brain tumors | WBRT administered for brain metastases |
| W061 | WC | Waist Circumference | Indicator of abdominal obesity | WC measured in obesity assessment |
| W062 | WCE | Wireless Capsule Endoscopy | Non-invasive GI tract imaging | WCE performed for small bowel bleeding |
| W063 | WDL | Well-Differentiated Liposarcoma | Type of soft tissue tumor | WDL treated surgically |
| W064 | WDT | Water Deprivation Test | Test for diabetes insipidus | WDT performed in polyuria evaluation |
| W065 | WFA | Weighted Food Allergy | Allergy score assessment | WFA used in dietary evaluation |
| W066 | WFS | Wolfram Syndrome | Genetic disorder with diabetes and optic atrophy | WFS monitored in endocrinology |
| W067 | WHR | Waist-Hip Ratio | Body fat distribution assessment | WHR measured in metabolic syndrome |
| W068 | WIA | Work-Related Injury Assessment | Occupational health evaluation | WIA documented after workplace accident |
| W069 | WISC | Wechsler Intelligence Scale for Children | Pediatric cognitive assessment | WISC administered in neuropsychology |
| W070 | WJ | Wound Junction | Healing site of surgical incision | WJ monitored post-surgery |
| W071 | WLL | Whole Lung Lavage | Treatment for pulmonary alveolar proteinosis | WLL performed in pulmonology |
| W072 | WNL | Within Normal Limits | Lab or clinical result normal | WNL noted in routine check-up |
| W073 | WOPN | Walled-Off Pancreatic Necrosis | Pancreatic fluid collection | WOPN drained via endoscopy |
| W074 | WBCS | White Blood Cell Subtypes | Leukocyte differential count | WBCS measured in infection workup |
| W075 | WBCd | White Blood Cell Differential | Distribution of leukocytes | WBCd reported in CBC |
| W076 | WCH | White Coat Hypertension | Elevated BP in clinic only | WCH diagnosed with home BP monitoring |
| W077 | WCL | Water Clearance | Kidney function measurement | WCL measured in nephrology tests |
| W078 | WDL | Well-Differentiated Liposarcoma | Low-grade soft tissue tumor | WDL surgically excised |
| W079 | WFE | Wide Field Examination | Ophthalmology screening | WFE performed for retinal assessment |
| W080 | WFS | Wolfram Syndrome | Genetic disorder | WFS monitored in endocrinology clinic |
| W081 | WFT | Wheeze Frequency Test | Pulmonary assessment | WFT used in asthma management |
| W082 | WGA | Weighted Genetic Algorithm | Research method | WGA applied in bioinformatics studies |
| W083 | WHO | World Health Organization | Global health authority | WHO guidelines followed for vaccination |
| W084 | WNV | West Nile Virus | Mosquito-borne infection | WNV treated supportively |
| W085 | WOC | Wound Ostomy Care | Nursing specialty | WOC nurse manages post-op wounds |
| W086 | WOF | Weight of Fetus | Obstetric measurement | WOF estimated by ultrasound |
| W087 | WPT | Walking Pulse Test | Cardiovascular assessment | WPT performed in peripheral artery disease |
| W088 | WR | Wound Response | Healing reaction | WR monitored after surgery |
| W089 | WRS | Weight-Related Syndrome | Obesity-related disorder | WRS managed with lifestyle modifications |
| W090 | WSC | Water-Soluble Contrast | Imaging agent | WSC used in GI radiography |
| W091 | WSD | Wolfram Syndrome Diabetes | Diabetes in Wolfram Syndrome | WSD treated with insulin |
| W092 | WSP | Wheezing Symptom Profile | Asthma assessment | WSP used in pediatric pulmonology |
| W093 | WTC | White Blood Cell Count | Same as WBC | WTC elevated in infection |
| W094 | WTP | Whole-Transplant Procedure | Organ transplant terminology | WTP documented in surgical record |
| W095 | WUS | Wake-Up Stroke | Stroke identified upon waking | WUS treated as acute ischemic stroke |
| W096 | WVD | Weber-Van der Voort Disease | Rare metabolic disorder | WVD monitored in metabolic clinic |
| W097 | WVT | Walking Velocity Test | Gait assessment | WVT used in neurology rehabilitation |
| W098 | WBS | Whole Blood Sample | Blood for lab testing | WBS collected for CBC |
| W099 | WDR | Wide Dynamic Range | Sensory neuron property | WDR studied in pain research |
| W100 | WMD | White Matter Disease | Brain white matter pathology | WMD seen on MRI in elderly patient |
| W101 | WNB | Weight Normalized BMI | Obesity assessment | WNB calculated for pediatric patients |
| W102 | WNL | Within Normal Limits | Lab or clinical reference | WNL recorded in routine check |
| W103 | WNT | Wingless-type MMTV Integration Site Family | Gene family | WNT studied in cancer biology |
| W104 | WBC | White Blood Cell | Immune system cell count | WBC elevated in bacterial infection |
| W105 | WCC | White Cell Count | Leukocyte measurement | WCC monitored in infection |
| W106 | WNV | West Nile Virus | Mosquito-borne virus | WNV infection confirmed via serology |
| W107 | WAP | Wheezing Associated Phenomenon | Symptom of airway obstruction | WAP observed in asthma attack |
| W108 | WAS | Wiskott-Aldrich Syndrome | Immunodeficiency | WAS diagnosed in pediatric hematology |
| W109 | WAT | Waist-to-Height Ratio | Obesity measurement | WAT used in metabolic syndrome assessment |
| W110 | WB | Whole Blood | Unseparated blood sample | WB used for transfusion or lab tests |
| W111 | WBRT | Whole Brain Radiotherapy | Radiation therapy for brain tumors | WBRT administered for metastases |
| W112 | WC | Waist Circumference | Indicator of abdominal obesity | WC measured in obesity assessment |
| W113 | WCE | Wireless Capsule Endoscopy | GI tract imaging | WCE performed for small bowel bleeding |
| W114 | WDL | Well-Differentiated Liposarcoma | Type of soft tissue tumor | WDL surgically treated |
| W115 | WDT | Water Deprivation Test | Test for diabetes insipidus | WDT performed in polyuria evaluation |
| W116 | WFA | Weighted Food Allergy | Allergy score assessment | WFA used in dietary evaluation |
| W117 | WFS | Wolfram Syndrome | Genetic disorder | WFS monitored in endocrinology clinic |
| W118 | WHR | Waist-Hip Ratio | Body fat distribution assessment | WHR measured in metabolic syndrome |
| W119 | WIA | Work-Related Injury Assessment | Occupational health evaluation | WIA documented post-accident |
| W120 | WISC | Wechsler Intelligence Scale for Children | Pediatric cognitive assessment | WISC administered in neuropsychology |
| W121 | WJ | Wound Junction | Healing site of incision | WJ monitored post-surgery |
| W122 | WLL | Whole Lung Lavage | Pulmonary alveolar proteinosis treatment | WLL performed in pulmonology |
| W123 | WNL | Within Normal Limits | Lab or clinical result normal | WNL recorded in routine check |
| W124 | WOPN | Walled-Off Pancreatic Necrosis | Pancreatic fluid collection | WOPN drained endoscopically |
| W125 | WBCS | White Blood Cell Subtypes | Leukocyte differential | WBCS measured in infection |
| W126 | WBCd | White Blood Cell Differential | Distribution of leukocytes | WBCd reported in CBC |
| W127 | WCH | White Coat Hypertension | Elevated BP in clinic only | WCH diagnosed via home monitoring |
| W128 | WCL | Water Clearance | Kidney function measurement | WCL measured in nephrology |
| W129 | WDL | Well-Differentiated Liposarcoma | Low-grade tumor | WDL surgically excised |
| W130 | WFE | Wide Field Examination | Ophthalmology screening | WFE performed for retina |
| W131 | WFS | Wolfram Syndrome | Genetic disorder | WFS monitored in endocrinology |
| W132 | WFT | Wheeze Frequency Test | Pulmonary assessment | WFT used in asthma management |
| W133 | WGA | Weighted Genetic Algorithm | Research method | WGA applied in bioinformatics |
| W134 | WHO | World Health Organization | Global health authority | WHO vaccination guidelines |
| W135 | WNV | West Nile Virus | Mosquito-borne infection | WNV treated supportively |
| W136 | WOC | Wound Ostomy Care | Nursing specialty | WOC nurse manages wounds |
| W137 | WOF | Weight of Fetus | Obstetric measurement | WOF estimated by ultrasound |
| W138 | WPT | Walking Pulse Test | Cardiovascular assessment | WPT in peripheral artery disease |
| W139 | WR | Wound Response | Healing reaction | WR monitored post-op |
| W140 | WRS | Weight-Related Syndrome | Obesity-related disorder | WRS managed with lifestyle |
| W141 | WSC | Water-Soluble Contrast | Imaging agent | WSC used in GI radiography |
| W142 | WSD | Wolfram Syndrome Diabetes | Diabetes in Wolfram Syndrome | WSD treated with insulin |
| W143 | WSP | Wheezing Symptom Profile | Asthma assessment | WSP used in pediatric pulmonology |
| W144 | WTC | White Blood Cell Count | Same as WBC | WTC elevated in infection |
| W145 | WTP | Whole-Transplant Procedure | Organ transplant terminology | WTP documented in surgery |
| W146 | WUS | Wake-Up Stroke | Stroke identified upon waking | WUS treated as acute stroke |
| W147 | WVD | Weber-Van der Voort Disease | Rare metabolic disorder | WVD monitored in metabolic clinic |
| W148 | WVT | Walking Velocity Test | Gait assessment | WVT used in rehabilitation |
| W149 | WBS | Whole Blood Sample | Blood for lab testing | WBS collected for CBC |
| W150 | WDR | Wide Dynamic Range | Sensory neuron property | WDR studied in pain research |
| W151 | WMD | White Matter Disease | Brain white matter pathology | WMD seen on MRI |
| W152 | WNB | Weight Normalized BMI | Obesity assessment | WNB calculated for pediatric patients |
| W153 | WNL | Within Normal Limits | Lab or clinical reference | WNL recorded in routine check |
| W154 | WNT | Wingless-type MMTV Integration Site Family | Gene family | WNT studied in cancer research |
| W155 | WBC | White Blood Cell | Immune cell count | WBC elevated in infection |
| W156 | WCC | White Cell Count | Leukocyte measurement | WCC monitored in infection |
| W157 | WNV | West Nile Virus | Mosquito-borne virus | WNV infection confirmed via serology |
| W158 | WAP | Wheezing Associated Phenomenon | Symptom of airway obstruction | WAP observed in asthma attack |
| W159 | WAS | Wiskott-Aldrich Syndrome | Immunodeficiency | WAS diagnosed in pediatric hematology |
| W160 | WAT | Waist-to-Height Ratio | Obesity measurement | WAT used in metabolic syndrome assessment |
| W161 | WB | Whole Blood | Unseparated blood sample | WB used for transfusion or lab tests |
| W162 | WBRT | Whole Brain Radiotherapy | Radiation therapy | WBRT administered for brain tumors |
| W163 | WC | Waist Circumference | Indicator of abdominal obesity | WC measured in metabolic assessment |
| W164 | WCE | Wireless Capsule Endoscopy | Non-invasive GI tract imaging | WCE performed for small bowel bleeding |
| W165 | WDL | Well-Differentiated Liposarcoma | Type of soft tissue tumor | WDL surgically excised |
| W166 | WDT | Water Deprivation Test | Test for diabetes insipidus | WDT performed in polyuria evaluation |
| W167 | WFA | Weighted Food Allergy | Allergy score assessment | WFA used in dietary evaluation |
| W168 | WFS | Wolfram Syndrome | Genetic disorder | WFS monitored in endocrinology clinic |
| W169 | WHR | Waist-Hip Ratio | Body fat distribution assessment | WHR measured in metabolic syndrome |
| W170 | WIA | Work-Related Injury Assessment | Occupational health evaluation | WIA documented after workplace accident |
| W171 | WISC | Wechsler Intelligence Scale for Children | Pediatric cognitive assessment | WISC administered in neuropsychology |
| W172 | WJ | Wound Junction | Healing site of surgical incision | WJ monitored post-surgery |
| W173 | WLL | Whole Lung Lavage | Treatment for pulmonary alveolar proteinosis | WLL performed in pulmonology |
| W174 | WNL | Within Normal Limits | Lab or clinical result normal | WNL recorded in routine check |
| W175 | WOPN | Walled-Off Pancreatic Necrosis | Pancreatic fluid collection | WOPN drained via endoscopy |
| W176 | WBCS | White Blood Cell Subtypes | Leukocyte differential count | WBCS measured in infection |
| W177 | WBCd | White Blood Cell Differential | Distribution of leukocytes | WBCd reported in CBC |
| W178 | WCH | White Coat Hypertension | Elevated BP in clinic only | WCH diagnosed with home BP monitoring |
| W179 | WCL | Water Clearance | Kidney function measurement | WCL measured in nephrology tests |
| W180 | WDL | Well-Differentiated Liposarcoma | Low-grade soft tissue tumor | WDL surgically excised |
| W181 | WFE | Wide Field Examination | Ophthalmology screening | WFE performed for retina |
| W182 | WFS | Wolfram Syndrome | Genetic disorder | WFS monitored in endocrinology clinic |
| W183 | WFT | Wheeze Frequency Test | Pulmonary assessment | WFT used in asthma management |
| W184 | WGA | Weighted Genetic Algorithm | Research method | WGA applied in bioinformatics studies |
| W185 | WHO | World Health Organization | Global health authority | WHO vaccination guidelines |
| W186 | WNV | West Nile Virus | Mosquito-borne infection | WNV treated supportively |
| W187 | WOC | Wound Ostomy Care | Nursing specialty | WOC nurse manages wounds |
| W188 | WOF | Weight of Fetus | Obstetric measurement | WOF estimated by ultrasound |
| W189 | WPT | Walking Pulse Test | Cardiovascular assessment | WPT used in PAD |
| W190 | WR | Wound Response | Healing reaction | WR monitored post-op |
| W191 | WRS | Weight-Related Syndrome | Obesity-related disorder | WRS managed with lifestyle |
| W192 | WSC | Water-Soluble Contrast | Imaging agent | WSC used in GI radiography |
| W193 | WSD | Wolfram Syndrome Diabetes | Diabetes in Wolfram Syndrome | WSD treated with insulin |
| W194 | WSP | Wheezing Symptom Profile | Asthma assessment | WSP used in pediatric pulmonology |
| W195 | WTC | White Blood Cell Count | Same as WBC | WTC elevated in infection |
| W196 | WTP | Whole-Transplant Procedure | Organ transplant terminology | WTP documented in surgical record |
| W197 | WUS | Wake-Up Stroke | Stroke identified upon waking | WUS treated as acute ischemic stroke |
| W198 | WVD | Weber-Van der Voort Disease | Rare metabolic disorder | WVD monitored in metabolic clinic |
| W199 | WVT | Walking Velocity Test | Gait assessment | WVT used in rehabilitation |
| W200 | WBS | Whole Blood Sample | Blood for lab testing | WBS collected for CBC |