Medical Branch Alphabet – G
| S. No | Abbreviation | Full Form | Short Explanation | Practical Example |
|---|---|---|---|---|
| G001 | GA | Gestational Age | Age of pregnancy | Obstetric ultrasound |
| G002 | GAB | General Anesthesia Block | Nerve block during surgery | Surgical procedure |
| G003 | GAC | Glucose Advisory Check | Blood sugar monitoring | Diabetes management |
| G004 | GAD | Generalized Anxiety Disorder | Anxiety disorder | Psychiatry |
| G005 | GAE | Gastroesophageal Exam | Assessment of GI tract | Endoscopy |
| G006 | GAF | Global Assessment of Functioning | Measures overall psychological functioning | Mental health evaluation |
| G007 | GAG | Glycosaminoglycan | Component of connective tissue | Biochemistry research |
| G008 | GAH | Growth and Hormone | Hormone-related growth assessment | Pediatrics |
| G009 | GAI | Glaucoma Assessment Index | Measures glaucoma risk | Ophthalmology |
| G010 | GAL | Gallbladder | Organ reference | Ultrasound imaging |
| G011 | GAM | General Anesthesia Management | Managing anesthesia | Surgical protocols |
| G012 | GAN | Genetic Algorithm in Neurology | Computational modeling | Neuroinformatics |
| G013 | GAO | Gastrointestinal Absorption Observation | Measures nutrient absorption | GI clinic |
| G014 | GAP | Gait Analysis Program | Measures walking patterns | Rehab physiotherapy |
| G015 | GAR | Glucose And Renal | Blood sugar & kidney assessment | Diabetes checkup |
| G016 | GAS | Gastric Aspiration Syndrome | Lung complication from stomach content | ICU |
| G017 | GAT | Glucose-Acid Test | Blood sugar & acid-base assessment | Lab testing |
| G018 | GAU | Genetic Analysis Unit | Lab for genetic testing | Molecular biology |
| G019 | GAV | Gastrointestinal Artery Visualization | Imaging of GI arteries | Radiology |
| G020 | GAW | General Airway Workup | Assessing airway function | Anesthesiology |
| G021 | GB | Gallbladder | Digestive organ | Ultrasound |
| G022 | GBA | Glutamate Brain Activity | Neurochemical monitoring | Neurology |
| G023 | GBC | Gallbladder Cancer | Malignancy of gallbladder | Oncology |
| G024 | GBD | Gallbladder Disease | Includes stones, inflammation | Gastroenterology |
| G025 | GBE | Glutathione Binding Enzyme | Enzyme in detoxification | Biochemistry |
| G026 | GBF | General Blood Flow | Circulatory assessment | Cardiology labs |
| G027 | GBG | Glycemic Blood Glucose | Blood sugar measurement | Diabetes management |
| G028 | GBH | Gestational Blood Hemoglobin | Hemoglobin in pregnant women | Prenatal labs |
| G029 | GBI | Gallbladder Imaging | Ultrasound or CT | GI diagnosis |
| G030 | GBM | Glioblastoma Multiforme | Aggressive brain tumor | Neuro-oncology |
| G031 | GBN | General Body Nutrients | Nutritional assessment | Dietetics |
| G032 | GBO | Gallbladder Obstruction | Blocked bile duct | Surgery |
| G033 | GBP | Gallbladder Polyps | Small growths in gallbladder | Radiology |
| G034 | GBR | Guided Bone Regeneration | Dental/orthopedic procedure | Oral surgery |
| G035 | GBS | Guillain–Barré Syndrome | Autoimmune nerve disorder | Neurology |
| G036 | GBT | Gastrointestinal Bypass Therapy | Surgical intervention | Bariatric surgery |
| G037 | GBU | General Biochemical Unit | Lab for chemical analysis | Hospital labs |
| G038 | GBV | Gender-Based Violence | Health & social issue | Public health program |
| G039 | GBW | Gallbladder Wall | Structure assessment | Ultrasound |
| G040 | GC | Glucose Control | Blood sugar regulation | Diabetes clinic |
| G041 | GCA | Giant Cell Arteritis | Inflammatory artery disease | Rheumatology |
| G042 | GCB | Granulocyte Colony-B | Growth factor for WBC | Hematology research |
| G043 | GCC | Gulf Cooperation Council | Regional reference | Epidemiology studies |
| G044 | GCD | Glomerular Capillary Density | Kidney function measure | Nephrology |
| G045 | GCE | Genetic Counseling & Evaluation | Genetic risk assessment | Prenatal clinic |
| G046 | GCF | Gingival Crevicular Fluid | Fluid in gum crevice | Dentistry research |
| G047 | GCH | Growth Chart Height | Monitoring child height | Pediatrics |
| G048 | GCI | General Cognitive Impairment | Brain function deficit | Neurology/psychology |
| G049 | GCL | Ganglion Cell Layer | Eye structure | Ophthalmology |
| G050 | GCM | Granulomatous Cell Myocarditis | Heart inflammation | Cardiology |
| G051 | GCN | Glial Cell Neoplasm | Brain glial tumor | Neuro-oncology |
| G052 | GCO | Gastrocolic Operation | GI surgical procedure | Surgery |
| G053 | GCP | Good Clinical Practice | Standard for clinical trials | Research compliance |
| G054 | GCR | Growth Curve Reference | Standard for growth measurement | Pediatrics |
| G055 | GCS | Glasgow Coma Scale | Assesses consciousness | Emergency/ICU |
| G056 | GCT | Glucose Challenge Test | Screening for gestational diabetes | Obstetrics |
| G057 | GCU | General Care Unit | Hospital ward | Patient admission |
| G058 | GCV | Granulocyte Colony Vaccine | Immune therapy | Hematology research |
| G059 | GD | Gestational Diabetes | Pregnancy-related diabetes | Prenatal care |
| G060 | GDA | Growth Differentiation Assessment | Evaluates growth patterns | Pediatrics |
| G061 | GDB | Genetic Disease Board | Committee for genetic disorders | Hospital genetics |
| G062 | GDC | General Dental Care | Basic dental services | Dentistry clinics |
| G063 | GDD | Global Developmental Delay | Delayed milestones in children | Pediatric neurology |
| G064 | GDE | Gastrointestinal Diagnostic Endoscopy | Endoscopic GI testing | GI clinic |
| G065 | GDF | Growth Differentiation Factor | Protein regulating growth | Molecular biology |
| G066 | GDH | Glucose Dehydrogenase | Enzyme in glucose metabolism | Lab testing |
| G067 | GDI | General Diagnostic Imaging | X-ray, MRI, CT services | Radiology |
| G068 | GDL | Gluteal Division Ligament | Hip anatomical structure | Orthopedics |
| G069 | GDM | Gestational Diabetes Mellitus | Diabetes during pregnancy | Obstetrics |
| G070 | GDN | General Dental Nurse | Dental assistant | Dentistry clinic |
| G071 | GDO | Gastroesophageal Device Operation | GI device usage | Surgery |
| G072 | GDP | General Developmental Profile | Child growth evaluation | Pediatrics |
| G073 | GDR | Gastrointestinal Disease Risk | Risk assessment for GI disorders | Preventive medicine |
| G074 | GDS | Geriatric Depression Scale | Screening elderly depression | Psychiatry |
| G075 | GDV | Gastric Dilatation-Volvulus | Stomach twisting (dogs) | Veterinary emergency |
| G076 | GDW | Gestational Day Weight | Fetal weight per gestational day | Prenatal charts |
| G077 | GE | Gastroenterology | Medical specialty | Hospital department |
| G078 | GEA | Gastroesophageal Assessment | Evaluating esophagus & stomach | Endoscopy |
| G079 | GEB | Gastroesophageal Biopsy | Tissue sampling | GI oncology |
| G080 | GEC | General Eye Checkup | Routine ophthalmology exam | Clinic visit |
| G081 | GED | Generalized Epileptic Disorder | Seizure disorder | Neurology |
| G082 | GEE | General Endocrine Evaluation | Hormonal assessment | Endocrinology |
| G083 | GEF | Glutamate Excitatory Factor | Neurochemical | Neuroscience |
| G084 | GEG | Gastric Emptying Gradient | Measure of gastric emptying | GI motility studies |
| G085 | GEH | General Eye Health | Routine eye maintenance | Optometry |
| G086 | GEI | Genetic Eye Impairment | Hereditary eye disorder | Ophthalmology |
| G087 | GEL | Gel Electrophoresis | DNA/protein separation method | Molecular labs |
| G088 | GEM | Gastroenterology Emergency Management | Urgent GI care | ER |
| G089 | GEN | Gene Expression Network | Molecular biology research | Genetics labs |
| G090 | GEO | General Epidemiology Observation | Disease trend monitoring | Public health |
| G091 | GEP | Gastroenteropancreatic | Relating to GI and pancreas | Oncology |
| G092 | GER | Gastroesophageal Reflux | Acid reflux condition | GI clinic |
| G093 | GET | Gastrointestinal Endoscopic Therapy | Treatment via endoscopy | GI surgery |
| G094 | GEU | Gynecologic Emergency Unit | Women’s urgent care | Hospital OB/GYN |
| G095 | GF | Growth Factor | Protein promoting cell growth | Molecular biology |
| G096 | GFA | General Functional Assessment | Evaluates patient abilities | Rehab medicine |
| G097 | GFB | Glomerular Filtration Barrier | Kidney filtering structure | Nephrology |
| G098 | GFC | Growth Factor Concentrate | Enriched growth proteins | Lab/therapy |
| G099 | GFD | Gluten-Free Diet | Diet avoiding gluten | Celiac disease |
| G100 | GFE | General Fetal Evaluation | Fetal assessment | Obstetric ultrasound |
| S. No | Abbreviation | Full Form | Short Explanation | Practical Example |
|---|---|---|---|---|
| G101 | GFF | General Fetal Findings | Fetal assessment summary | Obstetric report |
| G102 | GFG | Gastrointestinal Function Guide | Reference for GI function | Clinical handbook |
| G103 | GFH | Growth Factor Hormone | Hormone promoting tissue growth | Endocrinology labs |
| G104 | GFI | General Fitness Index | Physical fitness measure | Rehab assessment |
| G105 | GFJ | Gastrointestinal Fistula Junction | Site of fistula | Surgery report |
| G106 | GFK | Genetic Fetal Karyotype | Chromosome analysis | Prenatal genetics |
| G107 | GFL | Glomerular Filtration Level | Kidney function measurement | Nephrology labs |
| G108 | GFM | Gastroenterology Follow-up Monitor | Tracking GI patients | Clinic record |
| G109 | GFN | Genetic Fetal Nutrition | Nutritional genetics | Research labs |
| G110 | GFO | General Fetal Observation | Routine fetal check | Ultrasound clinic |
| G111 | GFP | Growth Factor Protein | Protein promoting growth | Lab research |
| G112 | GFR | Glomerular Filtration Rate | Kidney filtration measure | Nephrology |
| G113 | GFS | General Fetal Scan | Standard prenatal ultrasound | Obstetrics |
| G114 | GFT | Gastrointestinal Functional Test | Measures GI function | Clinical testing |
| G115 | GFU | Gastroenterology Follow-Up Unit | Department tracking GI patients | Hospital ward |
| G116 | GFV | Glucose Fasting Value | Blood sugar measurement | Diabetes monitoring |
| G117 | GFY | Growth Factor Yield | Amount of growth protein produced | Research labs |
| G118 | GG | Glomerulonephritis | Kidney inflammation | Nephrology |
| G119 | GGA | General Genetic Assessment | Evaluate genetic risks | Genetic counseling |
| G120 | GGB | Giant Ganglion Biopsy | Nerve tissue sampling | Neurology pathology |
| G121 | GGC | Glomerular Glucose Clearance | Kidney glucose filtering | Nephrology labs |
| G122 | GGD | Gastrointestinal Gas Distension | Abdominal bloating assessment | GI clinic |
| G123 | GGE | General Growth Evaluation | Child growth assessment | Pediatrics |
| G124 | GGF | Growth and Gene Function | Genetic influence on growth | Molecular research |
| G125 | GGH | Glycogen Granule Hypoplasia | Liver glycogen deficiency | Hepatology |
| G126 | GGI | Gastrointestinal Infection | Infection of GI tract | Infectious disease clinic |
| G127 | GGK | General Genetic Knowledge | Reference for genetics | Medical education |
| G128 | GGL | Glutamatergic Glial Line | Neural cell study | Neuroscience labs |
| G129 | GGM | General Geriatric Medicine | Elderly care specialty | Hospital department |
| G130 | GGN | Granulocyte Growth Nodule | White blood cell cluster | Hematology |
| G131 | GGO | Ground Glass Opacity | Imaging finding in lungs | Radiology |
| G132 | GGP | General Growth Pattern | Tracking growth over time | Pediatrics |
| G133 | GGR | Gastric Growth Rate | Stomach mucosa growth | GI research |
| G134 | GGS | General Genetic Screening | Population genetics test | Public health |
| G135 | GGT | Gamma-Glutamyl Transferase | Liver enzyme test | Biochemistry |
| G136 | GGU | General Gastrointestinal Unit | GI hospital department | Clinical hospital |
| G137 | GGW | General Glucose Watch | Continuous glucose monitoring | Diabetes care |
| G138 | GH | Growth Hormone | Hormone stimulating growth | Pediatrics/Endocrinology |
| G139 | GHA | General Health Assessment | Overall health evaluation | Clinic checkup |
| G140 | GHB | Gamma Hydroxybutyrate | CNS neurotransmitter/drug | Pharmacology |
| G141 | GHC | General Health Center | Community health facility | Public health |
| G142 | GHD | Growth Hormone Deficiency | Insufficient growth hormone | Pediatric endocrinology |
| G143 | GHE | General Health Examination | Routine health check | Hospital visits |
| G144 | GHF | Gastrohepatic Function | Liver and stomach function | Hepatology |
| G145 | GHG | Greenhouse Gas | Environmental health impact | Public health study |
| G146 | GHH | General Hospital History | Patient hospital records | Medical documentation |
| G147 | GHI | Global Health Initiative | International health program | Public health NGO |
| G148 | GHJ | General Health Journal | Health reporting publication | Medical journal |
| G149 | GHK | Glycyl-L-Histidyl-L-Lysine | Peptide for tissue repair | Research labs |
| G150 | GHL | Growth Hormone Level | Hormone measurement | Lab endocrinology |
| G151 | GHM | General Health Monitoring | Tracking patient health | Clinic or hospital |
| G152 | GHN | General Health Network | Healthcare system | Public health program |
| G153 | GHO | Global Health Observatory | Health data collection | WHO reports |
| G154 | GHP | General Health Program | Health promotion initiative | Community health |
| G155 | GHR | Growth Hormone Receptor | Hormone receptor study | Molecular biology |
| G156 | GHS | Globally Harmonized System | Chemical hazard labeling | Laboratory safety |
| G157 | GHT | Growth Hormone Therapy | Hormone replacement treatment | Pediatric endocrinology |
| G158 | GHU | General Health Unit | Hospital unit for wellness | Clinical service |
| G159 | GHV | General Health Visit | Routine medical check | Outpatient care |
| G160 | GI | Gastrointestinal | Relating to stomach/intestines | Hospital specialty |
| G161 | GIA | Gastrointestinal Analysis | Assessment of GI function | Clinical lab |
| G162 | GIB | Gastrointestinal Bleeding | Blood loss from GI tract | Emergency medicine |
| G163 | GIC | Gastrointestinal Cancer | Malignancy of GI tract | Oncology |
| G164 | GID | Gender Identity Disorder | Psychiatric classification | Mental health |
| G165 | GIE | Gastrointestinal Endoscopy | Diagnostic procedure | GI clinic |
| G166 | GIF | Gastrointestinal Function | Assessment of gut function | Hospital labs |
| G167 | GIG | General Immunology Group | Research team | Lab research |
| G168 | GIH | General Internal Health | Internal medicine specialty | Hospital department |
| G169 | GII | Gastrointestinal Infection | Infection in digestive tract | Infectious disease clinic |
| G170 | GIJ | Gastrointestinal Junction | Anatomical site | Surgery |
| G171 | GIL | General Immunology Lab | Lab for immune studies | Research institution |
| G172 | GIM | General Internal Medicine | Medical specialty | Hospital department |
| G173 | GIN | Gastrointestinal Neurology | Gut-brain function specialty | Clinical research |
| G174 | GIO | Gastrointestinal Oncology | GI cancer specialty | Hospital oncology |
| G175 | GIP | Gastrointestinal Peptide | Hormone affecting digestion | Endocrinology lab |
| G176 | GIQ | General Immunology Questionnaire | Immune health survey | Research |
| G177 | GIR | Gastrointestinal Reflux | Acid reflux condition | GI clinic |
| G178 | GIS | Gastrointestinal Surgery | Surgery of GI tract | Hospital surgery |
| G179 | GIT | Gastrointestinal Tract | Digestive system | Anatomy |
| G180 | GIU | Gastrointestinal Unit | Hospital department | Clinical services |
| G181 | GIV | Gastrointestinal Virus | Viral infection of GI tract | Infectious disease |
| G182 | GIW | Gastrointestinal Weight | GI organ measurement | Clinical research |
| G183 | GIX | Gastrointestinal Examination | Diagnostic GI test | Clinic |
| G184 | GJ | Gastrojejunal | Relating to stomach and jejunum | Surgery/anatomy |
| G185 | GJA | Gastrojejunal Anastomosis | Surgical connection | Bariatric surgery |
| G186 | GJC | General Joint Care | Orthopedic evaluation | Rehab clinic |
| G187 | GJD | Gastrojejunal Drainage | Surgical procedure | GI surgery |
| G188 | GJE | Gastrojejunal Examination | Diagnostic test | GI clinic |
| G189 | GJF | Gastrojejunal Fistula | Abnormal connection | Surgery |
| G190 | GJL | Gastrojejunal Ligation | Surgical closure | GI surgery |
| G191 | GJM | Gastrojejunal Monitoring | Post-surgery check | Hospital |
| G192 | GJN | Gastrojejunal Nutrition | Feeding via gastrojejunal route | Clinical nutrition |
| G193 | GJO | Gastrojejunal Obstruction | Blockage in gastrojejunal tract | Surgery |
| G194 | GJP | Gastrojejunal Procedure | Surgical or diagnostic procedure | GI surgery |
| G195 | GJR | Gastrojejunal Radiology | Imaging of gastrojejunal area | Radiology |
| G196 | GJS | Gastrojejunal Surgery | Surgical treatment | Hospital surgery |
| G197 | GJT | Gastrojejunal Therapy | Non-surgical treatment | Clinical care |
| G198 | GJU | Gastrojejunal Ultrasound | Imaging technique | Prenatal or GI clinic |
| G199 | GJV | Gastrojejunal Volume | Measurement of stomach-jejunal area | Research |
| G200 | GJW | Gastrojejunal Weight | Organ/tissue weight measurement | Clinical research |



