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

PCS Index Terms Starting With O ICD-10-PCS

The letter O section of the FY 2026 ICD-10-PCS Alphabetic Index carries 111 main terms, from obe-cel to Oxygenation. 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

111

Main Terms

533

Index Entries

Direct Entries

Cross-refs

A B C D E F G H I J K L M NOP Q R S T U V W X Y Z 3

111 of 111 shown

obe-celUse use Obecabtagene Autoleucel
Obecabtagene AutoleucelCode XW0
ObliterationCross-ref See: Destruction
Obturator arterySub-entries
use Internal Iliac Artery, Right
use Internal Iliac Artery, Left
Obturator lymph nodeUse use Lymphatic, Pelvis
Obturator muscleSub-entries
use Hip Muscle, Right
use Hip Muscle, Left
Obturator nerveUse use Lumbar Plexus
Obturator veinSub-entries
use Hypogastric Vein, Right
use Hypogastric Vein, Left
Obtuse marginUse use Heart, Left
Occipital arterySub-entries
use External Carotid Artery, Right
use External Carotid Artery, Left
Occipital lobeUse use Cerebral Hemisphere
Occipital lymph nodeSub-entries
use Lymphatic, Right Neck
use Lymphatic, Left Neck
Occipitofrontalis muscleUse use Facial Muscle
OcclusionSub-entries
Ampulla of Vater 0FLC
Anus 0DLQ
Aorta
Abdominal 04L0
View all 273 entries for Occlusion →
Occlusion, REBOA (resuscitative endovascular balloon occlusion of the aorta)Sub-entries
02LW3DJ
04L03DJ
Occupational therapyCross-ref See: Activities of Daily Living Treatment, Rehabilitation F08
Octagam 10%, for COVID-19 treatmentUse use High-Dose Intravenous Immune Globulin
OdentectomySub-entries
See: Excision, Mouth and Throat 0CB
See: Resection, Mouth and Throat 0CT
Odontoid processUse use Cervical Vertebra
Odronextamab AntineoplasticCode XW0
Olecranon bursaSub-entries
use Elbow Bursa and Ligament, Right
use Elbow Bursa and Ligament, Left
Olecranon processSub-entries
use Ulna, Right
use Ulna, Left
Olfactory bulbUse use Olfactory Nerve
Olumiant(R)Use use Baricitinib
Omadacycline Anti-infectiveCross-ref See: Introduction of substance in or on, Physiological Systems and Anatomical Regions 3E0
Omentectomy, omentumectomySub-entries
See: Excision, Gastrointestinal System 0DB
See: Resection, Gastrointestinal System 0DT
OmentofixationCross-ref See: Repair, Gastrointestinal System 0DQ
OmentoplastySub-entries
See: Repair, Gastrointestinal System 0DQ
See: Replacement, Gastrointestinal System 0DR
See: Supplement, Gastrointestinal System 0DU
Omentoplasty, pedicledCross-ref See: Transfer, Omentum 0DXU
OmentorrhaphyCross-ref See: Repair, Gastrointestinal System 0DQ
OmentotomyCross-ref See: Drainage, Gastrointestinal System 0D9
OmidubicelCode XW1
Omisirge(R)Use use Omidubicel
Omnilink Elite Vascular Balloon Expandable Stent SystemUse use Intraluminal Device
OneRF(tm) Ablation SystemCode 00503Z4
OnychectomySub-entries
See: Excision, Skin and Breast 0HB
See: Resection, Skin and Breast 0HT
OnychoplastySub-entries
See: Repair, Skin and Breast 0HQ
See: Replacement, Skin and Breast 0HR
OnychotomyCross-ref See: Drainage, Skin and Breast 0H9
OophorectomySub-entries
See: Excision, Female Reproductive System 0UB
See: Resection, Female Reproductive System 0UT
OophoropexySub-entries
See: Repair, Female Reproductive System 0UQ
See: Reposition, Female Reproductive System 0US
OophoroplastySub-entries
See: Repair, Female Reproductive System 0UQ
See: Supplement, Female Reproductive System 0UU
OophororrhaphyCross-ref See: Repair, Female Reproductive System 0UQ
OophorostomyCross-ref See: Drainage, Female Reproductive System 0U9
OophorotomySub-entries
See: Division, Female Reproductive System 0U8
See: Drainage, Female Reproductive System 0U9
OophorrhaphyCross-ref See: Repair, Female Reproductive System 0UQ
Open Pivot (mechanical) valveUse use Synthetic Substitute
Open Pivot Aortic Valve Graft (AVG)Use use Synthetic Substitute
Open-truss Design Internal Fixation DeviceSub-entries
Ankle
Left XRGK0B9
Right XRGJ0B9
Tarsal
View all 7 entries for Open-truss Design Internal Fixation Device →
Ophthalmic arteryUse use Intracranial Artery
Ophthalmic nerveUse use Trigeminal Nerve
Ophthalmic veinUse use Intracranial Vein
OpponensplastySub-entries
Tendon replacement See: Replacement, Tendons 0LR
Tendon transfer See: Transfer, Tendons 0LX
Optic chiasmaUse use Optic Nerve
Optic discSub-entries
use Retina, Right
use Retina, Left
Optic foramenUse use Sphenoid Bone
Optical coherence tomography, intravascularCross-ref See: Computerized Tomography (CT Scan)
Optimizer(tm) III implantable pulse generatorUse use Contractility Modulation Device in 0JH
Orbicularis oculi muscleSub-entries
use Upper Eyelid, Right
use Upper Eyelid, Left
Orbicularis oris muscleUse use Facial Muscle
Orbital AtherectomyCross-ref See: Extirpation, Heart and Great Vessels 02C
Orbital fasciaUse use Subcutaneous Tissue and Fascia, Face
Orbital portion of ethmoid boneSub-entries
use Orbit, Right
use Orbit, Left
Orbital portion of frontal boneSub-entries
use Orbit, Right
use Orbit, Left
Orbital portion of lacrimal boneSub-entries
use Orbit, Right
use Orbit, Left
Orbital portion of maxillaSub-entries
use Orbit, Right
use Orbit, Left
Orbital portion of palatine boneSub-entries
use Orbit, Right
use Orbit, Left
Orbital portion of sphenoid boneSub-entries
use Orbit, Right
use Orbit, Left
Orbital portion of zygomatic boneSub-entries
use Orbit, Right
use Orbit, Left
Orca-T Allogeneic T-cell ImmunotherapyCode XW0
Orchectomy, orchidectomy, orchiectomySub-entries
See: Excision, Male Reproductive System 0VB
See: Resection, Male Reproductive System 0VT
Orchidoplasty, orchioplastySub-entries
See: Repair, Male Reproductive System 0VQ
See: Replacement, Male Reproductive System 0VR
See: Supplement, Male Reproductive System 0VU
Orchidorrhaphy, orchiorrhaphyCross-ref See: Repair, Male Reproductive System 0VQ
Orchidotomy, orchiotomy, orchotomyCross-ref See: Drainage, Male Reproductive System 0V9
OrchiopexySub-entries
See: Repair, Male Reproductive System 0VQ
See: Reposition, Male Reproductive System 0VS
Oropharyngeal airway (OPA)Use use Intraluminal Device, Airway in Mouth and Throat
OropharynxUse use Pharynx
OssiculectomySub-entries
See: Excision, Ear, Nose, Sinus 09B
See: Resection, Ear, Nose, Sinus 09T
OssiculotomyCross-ref See: Drainage, Ear, Nose, Sinus 099
OSSURE(R)Code XW0V3WA
OSSURE(tm) implant materialUse use AGN1 Bone Void Filler
OstectomySub-entries
See: Excision, Head and Facial Bones 0NB
See: Resection, Head and Facial Bones 0NT
See: Excision, Upper Bones 0PB
See: Resection, Upper Bones 0PT
View all 7 entries for Ostectomy →
OsteoclasisSub-entries
See: Division, Head and Facial Bones 0N8
See: Division, Upper Bones 0P8
See: Division, Lower Bones 0Q8
OsteolysisSub-entries
See: Release, Head and Facial Bones 0NN
See: Release, Upper Bones 0PN
See: Release, Lower Bones 0QN
Osteopathic TreatmentSub-entries
Abdomen 7W09X
Cervical 7W01X
Extremity
Lower 7W06X
View all 12 entries for Osteopathic Treatment →
OsteopexySub-entries
See: Repair, Head and Facial Bones 0NQ
See: Reposition, Head and Facial Bones 0NS
See: Repair, Upper Bones 0PQ
See: Reposition, Upper Bones 0PS
View all 7 entries for Osteopexy →
OsteoplastySub-entries
See: Repair, Head and Facial Bones 0NQ
See: Replacement, Head and Facial Bones 0NR
See: Supplement, Head and Facial Bones 0NU
See: Repair, Upper Bones 0PQ
View all 10 entries for Osteoplasty →
OsteorrhaphySub-entries
See: Repair, Head and Facial Bones 0NQ
See: Repair, Upper Bones 0PQ
See: Repair, Lower Bones 0QQ
Osteotomy, ostotomySub-entries
See: Division, Head and Facial Bones 0N8
See: Drainage, Head and Facial Bones 0N9
See: Division, Upper Bones 0P8
See: Drainage, Upper Bones 0P9
View all 7 entries for Osteotomy →
Other ImagingSub-entries
Bile Duct, Indocyanine Green Dye, Intraoperative BF50200
Bile Duct and Gallbladder, Indocyanine Green Dye, Intraoperative BF53200
Extremity
Lower BW5CZ1Z
View all 16 entries for Other Imaging →
Other New Technology Monoclonal AntibodyCode XW0
Other New Technology Therapeutic SubstanceCode XW0
Other Positive Blood/Isolated Colonies Bimodal Phenotypic Susceptibility TechnologyCode XXE5XY9
Otic ganglionUse use Head and Neck Sympathetic Nerve
OTL-101Use use Hematopoietic Stem/Progenitor Cells, Genetically Modified
OTL-103Code XW1
OtoplastySub-entries
See: Repair, Ear, Nose, Sinus 09Q
See: Replacement, Ear, Nose, Sinus 09R
See: Supplement, Ear, Nose, Sinus 09U
OtoscopyCross-ref See: Inspection, Ear, Nose, Sinus 09J
Oval windowSub-entries
use Middle Ear, Right
use Middle Ear, Left
Ovarian arteryUse use Abdominal Aorta
Ovarian ligamentUse use Uterine Supporting Structure
OvariectomySub-entries
See: Excision, Female Reproductive System 0UB
See: Resection, Female Reproductive System 0UT
OvariocentesisCross-ref See: Drainage, Female Reproductive System 0U9
OvariopexySub-entries
See: Repair, Female Reproductive System 0UQ
See: Reposition, Female Reproductive System 0US
OvariotomySub-entries
See: Division, Female Reproductive System 0U8
See: Drainage, Female Reproductive System 0U9
Ovatio(tm) CRT-DUse use Cardiac Resynchronization Defibrillator Pulse Generator in 0JH
OversewingSub-entries
Gastrointestinal ulcer See: Repair, Gastrointestinal System 0DQ
Pleural bleb See: Repair, Respiratory System 0BQ
OviductSub-entries
use Fallopian Tube, Right
use Fallopian Tube, Left
Oximetry, Fetal pulseCode 10H073Z
OXINIUMUse use Synthetic Substitute, Oxidized Zirconium on Polyethylene in 0SR
Oxygen Saturation Endoscopic Imaging (OXEI)Code XD2
OxygenationSub-entries
Extracorporeal membrane (ECMO) See: Performance, Circulatory 5A15
Hyperbaric See: Assistance, Circulatory 5A05
Supersaturated See: Assistance, Cardiac 5A02

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.