ICD-10-PCS Alphabetic Index · FY 2026 Letter I

PCS Index Terms Starting With I ICD-10-PCS

The letter I section of the FY 2026 ICD-10-PCS Alphabetic Index carries 220 main terms, from IABP to Itrel neurostimulator. Terms with a direct entry link straight to the code or table, see references point to the main term that holds the codes, use references map anatomy and brand names to their PCS values, and terms with a handful of sub-entries render in full right here. The largest terms open their own full index page.

✓ Built from the official CMS FY 2026 index fileEffective Oct 1, 2025 – Sep 30, 2026

220

Main Terms

2,057

Index Entries

Direct Entries

114

Cross-refs

A B C D E F G HIJ K L M N O P Q R S T U V W X Y Z 3

220 of 220 shown

IABP (Intra-aortic balloon pump)Cross-ref See: Assistance, Cardiac 5A02
IAEMT (Intraoperative anesthetic effect monitoring and titration)Cross-ref See: Monitoring, Central Nervous 4A10
IASD(R) (InterAtrial Shunt Device), CorviaUse use Synthetic Substitute
Idarucizumab, Pradaxa(R)(dabigatran) reversal agentUse use Other Therapeutic Substance
Ide-celUse use Idecabtagene Vicleucel Immunotherapy
Idecabtagene VicleucelUse use Idecabtagene Vicleucel Immunotherapy
Idecabtagene Vicleucel ImmunotherapyCode XW0
IEP(R) (Integrated Embolic Protection) System, NeuroguardCross-ref See: New Technology, Cardiovascular System X2A
iFuse Bedrock(tm) Granite Implant SystemUse use Internal Fixation Device with Tulip Connector in New Technology
iFuse TORQ TNT(tm) Implant SystemUse use Internal Fixation Device, Bone-Density-Specific Thread and Porosity Pattern in New Technology
IGIV-C, for COVID-19 treatmentUse use Hyperimmune Globulin
IHD (Intermittent hemodialysis)Code 5A1D70Z
Ileal arteryUse use Superior Mesenteric Artery
Ileal interposition vaginoplastyCross-ref See: Transfer, Intestine, Small 0DX8
IleectomySub-entries
See: Excision, Ileum 0DBB
See: Resection, Ileum 0DTB
Ileocolic arteryUse use Superior Mesenteric Artery
Ileocolic veinUse use Colic Vein
IleopexySub-entries
See: Repair, Ileum 0DQB
See: Reposition, Ileum 0DSB
IleorrhaphyCross-ref See: Repair, Ileum 0DQB
IleoscopyCode 0DJD8ZZ
IleostomySub-entries
See: Bypass, Ileum 0D1B
See: Drainage, Ileum 0D9B
IleotomyCross-ref See: Drainage, Ileum 0D9B
IleoureterostomyCross-ref See: Bypass, Urinary System 0T1
Iliac crestSub-entries
use Pelvic Bone, Right
use Pelvic Bone, Left
Iliac fasciaSub-entries
use Subcutaneous Tissue and Fascia, Right Upper Leg
use Subcutaneous Tissue and Fascia, Left Upper Leg
Iliac lymph nodeUse use Lymphatic, Pelvis
Iliacus muscleSub-entries
use Hip Muscle, Right
use Hip Muscle, Left
Iliofemoral ligamentSub-entries
use Hip Bursa and Ligament, Right
use Hip Bursa and Ligament, Left
Iliohypogastric nerveUse use Lumbar Plexus
Ilioinguinal nerveUse use Lumbar Plexus
Iliolumbar arterySub-entries
use Internal Iliac Artery, Right
use Internal Iliac Artery, Left
Iliolumbar ligamentUse use Lower Spine Bursa and Ligament
Iliopsoas muscleSub-entries
use Hip Muscle, Right
use Hip Muscle, Left
Iliotibial tract (band)Sub-entries
use Subcutaneous Tissue and Fascia, Right Upper Leg
use Subcutaneous Tissue and Fascia, Left Upper Leg
IliumSub-entries
use Pelvic Bone, Right
use Pelvic Bone, Left
Ilizarov external fixatorSub-entries
use External Fixation Device, Ring in 0PH
use External Fixation Device, Ring in 0PS
use External Fixation Device, Ring in 0QH
use External Fixation Device, Ring in 0QS
Ilizarov-Vecklich deviceSub-entries
use External Fixation Device, Limb Lengthening in 0PH
use External Fixation Device, Limb Lengthening in 0QH
IloprostCode XW0
Imaging, diagnosticSub-entries
See: Plain Radiography
See: Fluoroscopy
See: Computerized Tomography (CT Scan)
See: Magnetic Resonance Imaging (MRI)
View all 6 entries for Imaging →
IMDELLTRA(tm)Use use Tarlatamab-dlle Antineoplastic
Imdevimab (REGN10987) and Casirivimab (REGN10933)Use use REGN-COV2 Monoclonal Antibody
IMFINZI(R)Use use Other Substance
IMI/RELUse use Other Anti-infective
Imipenem-cilastatin-relebactam Anti-infectiveUse use Other Anti-infective
ImmobilizationSub-entries
Abdominal Wall 2W33X
Arm
Lower
Left 2W3DX
View all 46 entries for Immobilization →
ImmunizationCross-ref See: Introduction of Serum, Toxoid, and Vaccine
ImmunoglobulinUse use Globulin
ImmunotherapyCross-ref See: Introduction of Immunotherapeutic Substance
Immunotherapy, antineoplasticSub-entries
Interferon See: Introduction of Low-dose Interleukin-2
Interleukin-2, high-dose See: Introduction of High-dose Interleukin-2
Interleukin-2, low-dose See: Introduction of Low dose Interleukin-2
Monoclonal antibody See: Introduction of Monoclonal Antibody
View all 7 entries for Immunotherapy →
Impella(R) 5.5 with SmartAssist(R) SystemUse use Conduit to Short-term External Heart Assist System in New Technology
Impella(R) heart pumpUse use Short-term External Heart Assist System in Heart and Great Vessels
Impeller PumpSub-entries
Continuous, Output 5A0221D
Intermittent, Output 5A0211D
Implantable cardioverter-defibrillator (ICD)Use use Defibrillator Generator in 0JH
Implantable drug infusion pump (anti-spasmodic)(chemotherapy)(pain)Use use Infusion Device, Pump in Subcutaneous Tissue and Fascia
Implantable glucose monitoring deviceUse use Monitoring Device
Implantable hemodynamic monitor (IHM)Use use Monitoring Device, Hemodynamic in 0JH
Implantable hemodynamic monitoring system (IHMS)Use use Monitoring Device, Hemodynamic in 0JH
Implantable Miniature Telescope(tm) (IMT)Use use Synthetic Substitute, Intraocular Telescope in 08R
ImplantationSub-entries
See: Replacement
See: Insertion
Implanted (venous)(access) portUse use Vascular Access Device, Totally Implantable in Subcutaneous Tissue and Fascia
IMV (intermittent mandatory ventilation)Cross-ref See: Assistance, Respiratory 5A09
In Vitro FertilizationCode 8E0ZXY1
Incision, abscessCross-ref See: Drainage
IncudectomySub-entries
See: Excision, Ear, Nose, Sinus 09B
See: Resection, Ear, Nose, Sinus 09T
IncudopexySub-entries
See: Repair, Ear, Nose, Sinus 09Q
See: Reposition, Ear, Nose, Sinus 09S
IncusSub-entries
use Auditory Ossicle, Right
use Auditory Ossicle, Left
Induction of laborSub-entries
Artificial rupture of membranes See: Drainage, Pregnancy 109
Mechanical cervical ripening with temporary device (e.g., balloon catheter, Laminaria, Dilapan-S(R) rod) 0U7C7DJ
Oxytocin See: Introduction of Hormone
InDura, intrathecal catheter (1P) (spinal)Use use Infusion Device
Inebilizumab-cdonCode XW0
Infection, Computer-aided Triage and Notification, MeasurementCode XXEZXCB
Infection and Immune Response, Gene Expression Testing System, MeasurementCode XXE5XBB
Inferior cardiac nerveUse use Thoracic Sympathetic Nerve
Inferior cerebellar veinUse use Intracranial Vein
Inferior cerebral veinUse use Intracranial Vein
Inferior epigastric arterySub-entries
use External Iliac Artery, Right
use External Iliac Artery, Left
Inferior epigastric lymph nodeUse use Lymphatic, Pelvis
Inferior genicular arterySub-entries
use Popliteal Artery, Right
use Popliteal Artery, Left
Inferior gluteal arterySub-entries
use Internal Iliac Artery, Right
use Internal Iliac Artery, Left
Inferior gluteal nerveUse use Sacral Plexus
Inferior hypogastric plexusUse use Abdominal Sympathetic Nerve
Inferior labial arteryUse use Face Artery
Inferior longitudinal muscleUse use Tongue, Palate, Pharynx Muscle
Inferior mesenteric ganglionUse use Abdominal Sympathetic Nerve
Inferior mesenteric lymph nodeUse use Lymphatic, Mesenteric
Inferior mesenteric plexusUse use Abdominal Sympathetic Nerve
Inferior oblique muscleSub-entries
use Extraocular Muscle, Right
use Extraocular Muscle, Left
Inferior pancreaticoduodenal arteryUse use Superior Mesenteric Artery
Inferior phrenic arteryUse use Abdominal Aorta
Inferior rectus muscleSub-entries
use Extraocular Muscle, Right
use Extraocular Muscle, Left
Inferior suprarenal arterySub-entries
use Renal Artery, Right
use Renal Artery, Left
Inferior tarsal plateSub-entries
use Lower Eyelid, Right
use Lower Eyelid, Left
Inferior thyroid veinSub-entries
use Innominate Vein, Right
use Innominate Vein, Left
Inferior tibiofibular jointSub-entries
use Ankle Joint, Right
use Ankle Joint, Left
Inferior turbinateUse use Nasal Turbinate
Inferior ulnar collateral arterySub-entries
use Brachial Artery, Right
use Brachial Artery, Left
Inferior vesical arterySub-entries
use Internal Iliac Artery, Right
use Internal Iliac Artery, Left
Infraauricular lymph nodeUse use Lymphatic, Head
Infraclavicular (deltopectoral) lymph nodeSub-entries
use Lymphatic, Right Upper Extremity
use Lymphatic, Left Upper Extremity
Infrahyoid muscleSub-entries
use Neck Muscle, Right
use Neck Muscle, Left
Infraparotid lymph nodeUse use Lymphatic, Head
Infraspinatus fasciaSub-entries
use Subcutaneous Tissue and Fascia, Right Upper Arm
use Subcutaneous Tissue and Fascia, Left Upper Arm
Infraspinatus muscleSub-entries
use Shoulder Muscle, Right
use Shoulder Muscle, Left
Infundibulopelvic ligamentUse use Uterine Supporting Structure
InfusionCross-ref See: Introduction of substance in or on
Infusion Device, PumpSub-entries
Insertion of device in
Abdomen 0JH8
Back 0JH7
Chest 0JH6
View all 26 entries for Infusion Device →
Infusion, glucarpidaseSub-entries
Central vein 3E043GQ
Peripheral vein 3E033GQ
Ingestible Capsule with Light Absorption Sensor, Inspection, Upper Intestinal TractCode XDJ07LB
Inguinal canalSub-entries
use Inguinal Region, Right
use Inguinal Region, Left
use Inguinal Region, Bilateral
Inguinal triangleSub-entries
use Inguinal Region, Right
use Inguinal Region, Left
use Inguinal Region, Bilateral
INHANCE(tm) Anatomic Stemless Shoulder SystemCross-ref See: Replacement, Upper Joints 0RR
InjectionCross-ref See: Introduction of substance in or on
Injection reservoir, portUse use Vascular Access Device, Totally Implantable in Subcutaneous Tissue and Fascia
Injection reservoir, pumpUse use Infusion Device, Pump in Subcutaneous Tissue and Fascia
Innova(tm) stentUse use Intraluminal Device
Insemination, artificialCode 3E0P7LZ
InsertionSub-entries
Antimicrobial envelope See: Introduction of Anti-infective
Aqueous drainage shunt
See: Bypass, Eye 081
See: Drainage, Eye 089
View all 50 entries for Insertion →
Insertion of device inSub-entries
Abdominal Wall 0WHF
Acetabulum
Left 0QH5
Right 0QH4
View all 594 entries for Insertion of device in →
InspectionSub-entries
Abdominal Wall 0WJF
Ankle Region
Left 0YJL
Right 0YJK
View all 270 entries for Inspection →
Inspiris Resilia valveUse use Zooplastic Tissue in Heart and Great Vessels
InstillationCross-ref See: Introduction of substance in or on
InsufflationCross-ref See: Introduction of substance in or on
Intellis(tm) neurostimulatorUse use Stimulator Generator, Multiple Array Rechargeable in 0JH
IntelliSep testCode XXE5X5A
Interatrial septumUse use Atrial Septum
InterAtrial Shunt Device IASD(R), CorviaUse use Synthetic Substitute
Interbody fusion (spine) cageSub-entries
use Interbody Fusion Device in Upper Joints
use Interbody Fusion Device in Lower Joints
Interbody Fusion Device, Custom-Made Anatomically DesignedSub-entries
Cervical Vertebral XRG1
2 or more XRG2
Cervicothoracic Vertebral XRG4
Lumbar Vertebral XRGB
View all 8 entries for Interbody Fusion Device →
Intercarpal jointSub-entries
use Carpal Joint, Right
use Carpal Joint, Left
Intercarpal ligamentSub-entries
use Hand Bursa and Ligament, Right
use Hand Bursa and Ligament, Left
INTERCEPT Blood System for Plasma Pathogen Reduced Cryoprecipitated Fibrinogen ComplexUse use Pathogen Reduced Cryoprecipitated Fibrinogen Complex
INTERCEPT Fibrinogen ComplexUse use Pathogen Reduced Cryoprecipitated Fibrinogen Complex
Interclavicular ligamentSub-entries
use Shoulder Bursa and Ligament, Right
use Shoulder Bursa and Ligament, Left
Intercostal lymph nodeUse use Lymphatic, Thorax
Intercostal muscleSub-entries
use Thorax Muscle, Right
use Thorax Muscle, Left
Intercostal nerveUse use Thoracic Nerve
Intercostobrachial nerveUse use Thoracic Nerve
Intercuneiform jointSub-entries
use Tarsal Joint, Right
use Tarsal Joint, Left
Intercuneiform ligamentSub-entries
use Foot Bursa and Ligament, Right
use Foot Bursa and Ligament, Left
Intermediate bronchusUse use Main Bronchus, Right
Intermediate cuneiform boneSub-entries
use Tarsal, Right
use Tarsal, Left
Intermittent Coronary Sinus OcclusionCode X2A7358
Intermittent hemodialysis (IHD)Code 5A1D70Z
Intermittent mandatory ventilationCross-ref See: Assistance, Respiratory 5A09
Intermittent Negative Airway PressureSub-entries
24-96 Consecutive Hours, Ventilation 5A0945B
Greater than 96 Consecutive Hours, Ventilation 5A0955B
Less than 24 Consecutive Hours, Ventilation 5A0935B
Intermittent Positive Airway PressureSub-entries
24-96 Consecutive Hours, Ventilation 5A09458
Greater than 96 Consecutive Hours, Ventilation 5A09558
Less than 24 Consecutive Hours, Ventilation 5A09358
Intermittent positive pressure breathingCross-ref See: Assistance, Respiratory 5A09
Internal (basal) cerebral veinUse use Intracranial Vein
Internal anal sphincterUse use Anal Sphincter
Internal carotid artery, intracranial portionUse use Intracranial Artery
Internal carotid plexusUse use Head and Neck Sympathetic Nerve
Internal Fixation Device, Bone-Density-Specific Thread and Porosity PatternSub-entries
Fusion, Joint, Sacroiliac XRG
Insertion, Bone, Pelvic XNH
Reposition, Bone, Pelvic XNS
Internal Fixation Device with Tulip ConnectorSub-entries
Fusion, Joint, Sacroiliac XRG
Insertion, Bone, Pelvic XNH
Internal iliac veinSub-entries
use Hypogastric Vein, Right
use Hypogastric Vein, Left
Internal maxillary arterySub-entries
use External Carotid Artery, Right
use External Carotid Artery, Left
Internal narisUse use Nasal Mucosa and Soft Tissue
Internal oblique muscleSub-entries
use Abdomen Muscle, Right
use Abdomen Muscle, Left
Internal pudendal arterySub-entries
use Internal Iliac Artery, Right
use Internal Iliac Artery, Left
Internal pudendal veinSub-entries
use Hypogastric Vein, Right
use Hypogastric Vein, Left
Internal thoracic arterySub-entries
use Internal Mammary Artery, Right
use Internal Mammary Artery, Left
use Subclavian Artery, Right
use Subclavian Artery, Left
Internal urethral sphincterUse use Urethra
Interphalangeal (IP) jointSub-entries
use Finger Phalangeal Joint, Right
use Finger Phalangeal Joint, Left
use Toe Phalangeal Joint, Right
use Toe Phalangeal Joint, Left
Interphalangeal ligamentSub-entries
use Hand Bursa and Ligament, Right
use Hand Bursa and Ligament, Left
use Foot Bursa and Ligament, Right
use Foot Bursa and Ligament, Left
Interrogation, cardiac rhythm related deviceSub-entries
Interrogation only See: Measurement, Cardiac 4B02
With cardiac function testing See: Measurement, Cardiac 4A02
InterruptionCross-ref See: Occlusion
Interspinalis muscleSub-entries
use Trunk Muscle, Right
use Trunk Muscle, Left
Interspinous ligament, cervicalUse use Head and Neck Bursa and Ligament
Interspinous ligament, lumbarUse use Lower Spine Bursa and Ligament
Interspinous ligament, thoracicUse use Upper Spine Bursa and Ligament
Interspinous process spinal stabilization deviceSub-entries
use Spinal Stabilization Device, Interspinous Process in 0RH
use Spinal Stabilization Device, Interspinous Process in 0SH
InterStim(R) Therapy leadUse use Neurostimulator Lead in Peripheral Nervous System
InterStim(tm) II Therapy neurostimulatorUse use Stimulator Generator, Single Array in 0JH
InterStim(tm) Micro Therapy neurostimulatorUse use Stimulator Generator, Single Array Rechargeable in 0JH
Interstitial Fluid Volume, Sub-Epidermal Moisture using Electrical BiocapacitanceCode XX2KXP9
Interstitial Glucose, Wearable Sensor, MonitoringCode XX2KXDB
Intertransversarius muscleSub-entries
use Trunk Muscle, Right
use Trunk Muscle, Left
Intertransverse ligament, cervicalUse use Head and Neck Bursa and Ligament
Intertransverse ligament, lumbarUse use Lower Spine Bursa and Ligament
Intertransverse ligament, thoracicUse use Upper Spine Bursa and Ligament
Interventricular foramen (Monro)Use use Cerebral Ventricle
Interventricular septumUse use Ventricular Septum
Intestinal lymphatic trunkUse use Cisterna Chyli
Intra.OXCode 8E02XDZ
Intracardiac Pacemaker, Dual-Chamber, InsertionCode X2H
Intracranial Arterial Flow, Whole Blood mRNACode XXE5XT7
Intracranial Cerebrospinal Fluid Flow, Computer-aided Triage and NotificationCode XXE0X1A
Intraluminal Bioprosthetic Valve Leaflet Splitting Technology in Existing Valve, DivisionCode X28F3VA
Intraluminal DeviceSub-entries
Airway
Esophagus 0DH5
Mouth and Throat 0CHY
Nasopharynx 09HN
View all 66 entries for Intraluminal Device →
Intramedullary (IM) rod (nail)Sub-entries
use Internal Fixation Device, Intramedullary in Upper Bones
use Internal Fixation Device, Intramedullary in Lower Bones
Intramedullary skeletal kinetic distractor (ISKD)Sub-entries
use Internal Fixation Device, Intramedullary in Upper Bones
use Internal Fixation Device, Intramedullary in Lower Bones
Intranasal vascular pedicled flapCross-ref See: Transfer, Ear, Nose, Sinus 09X
Intraocular TelescopeSub-entries
Left 08RK30Z
Right 08RJ30Z
Intraoperative Radiation Therapy (IORT)Sub-entries
Anus DDY8CZZ
Bile Ducts DFY2CZZ
Bladder DTY2CZZ
Brain D0Y0CZZ
View all 28 entries for Intraoperative Radiation Therapy →
Intrauterine device (IUD)Use use Contraceptive Device in Female Reproductive System
Intravascular fluorescence angiography (IFA)Cross-ref See: Monitoring, Physiological Systems 4A1
Intravascular Lithotripsy (IVL)Cross-ref See: Fragmentation
Intravascular ultrasound assisted thrombolysisCross-ref See: Fragmentation, Artery
Introduction of substance in or onSub-entries
Artery
Central 3E06
Analgesics 3E06
Anesthetic, Intracirculatory 3E06
View all 559 entries for Introduction of substance in or on →
Intubated prone positioningCross-ref See: Assistance, Respiratory 5A09
IntubationSub-entries
Airway
See: Insertion of device in, Trachea 0BH1
See: Insertion of device in, Mouth and Throat 0CHY
See: Insertion of device in, Esophagus 0DH5
View all 7 entries for Intubation →
INTUITY Elite valve system, EDWARDS (rapid deployment technique)Cross-ref See: Replacement, Valve, Aortic 02RF
Iobenguane I-131 AntineoplasticCode XW0
Iobenguane I-131, High Specific Activity (HSA)Use use Iobenguane I-131 Antineoplastic
IPPB (intermittent positive pressure breathing)Cross-ref See: Assistance, Respiratory 5A09
IRE (Irreversible Electroporation)Cross-ref See: Destruction, Hepatobiliary System and Pancreas 0F5
IridectomySub-entries
See: Excision, Eye 08B
See: Resection, Eye 08T
IridoplastySub-entries
See: Repair, Eye 08Q
See: Replacement, Eye 08R
See: Supplement, Eye 08U
IridotomyCross-ref See: Drainage, Eye 089
Irreversible Electroporation (IRE)Sub-entries
See: Destruction, Heart and Great Vessels 025
See: Destruction, Hepatobiliary System and Pancreas 0F5
IrrigationSub-entries
Biliary Tract, Irrigating Substance 3E1J
Brain, Irrigating Substance 3E1Q38Z
Cranial Cavity, Irrigating Substance 3E1Q38Z
Ear, Irrigating Substance 3E1B
View all 27 entries for Irrigation →
Isavuconazole (isavuconazonium sulfate)Use use Other Anti-infective
ISC-REST kitSub-entries
ISCDx XXE5XT7
QIAGEN Access Anti-SARS-CoV-2 Total Test XXE5XV7
QIAstat-Dx Respiratory SARS-CoV-2 Panel XXE97U7
Ischemic Stroke System (ISS500)Use use Neurostimulator Lead in New Technology
Ischiatic nerveUse use Sciatic Nerve
Ischiocavernosus muscleUse use Perineum Muscle
Ischiofemoral ligamentSub-entries
use Hip Bursa and Ligament, Right
use Hip Bursa and Ligament, Left
IschiumSub-entries
use Pelvic Bone, Right
use Pelvic Bone, Left
IsolationCode 8E0ZXY6
Isotope Administration, Other Radiation, Whole BodyCode DWY5G
ISS500 (Ischemic Stroke System)Use use Neurostimulator Lead in New Technology
Itrel (3)(4) neurostimulatorUse use Stimulator Generator, Single Array in 0JH

Related References

ICD-10-PCS Alphabetic Index ICD-10-PCS Code Tables ICD-10-PCS Code Lookup

Source: Centers for Medicare & Medicaid Services, FY 2026 ICD-10-PCS Alphabetic Index release files, effective October 1, 2025 through September 30, 2026.