2025 ICD-10-PCS Procedure Codes List
What is ICD-10-PCS?
The International Classification of Diseases, 10th Revision, Procedure Coding System (ICD-10-PCS) is a standardized coding system used to document medical procedures performed in inpatient hospital settings. Developed and maintained by the Centers for Medicare & Medicaid Services (CMS) in the United States, ICD-10-PCS is updated annually to reflect changes in medical technology, clinical practice, and regulatory requirements.
ICD-10-PCS is exclusively used for inpatient procedural coding and is distinct from ICD-10-CM, which is used for diagnosis coding across various care settings.
Each ICD-10-PCS code consists of seven alphanumeric characters, with no decimals or punctuation. The codes are designed to be specific, comprehensive, and flexible enough to accommodate evolving medical procedures. The structure of each code is as follows:
- Character 1: Section – identifies the general type of procedure (e.g., Medical and Surgical, Imaging, Administration).
- Characters 2–7: Vary depending on the section but may represent the body system, root operation, body part, approach, device, and any qualifying information.
This modular structure allows for a high degree of specificity in capturing procedural details, supporting accurate clinical documentation, reporting, and reimbursement.
- Section 0 - Medical and Surgical
- Section 1 - Obstetrics
- Section 2 - Placement
- Section 3 - Administration
- Section 4 - Measurement and Monitoring
- Section 5 - Extracorporeal or Systemic Assistance and Perfor
- Section 6 - Extracorporeal or Systemic Therapies
- Section 7 - Osteopathic
- Section 8 - Other Procedures
- Section 9 - Chiropractic
- Section B - Imaging
- Section C - Nuclear Medicine
- Section D - Radiation Therapy
- Section F - Physical Rehabilitation and Diagnostic Audiology
- Section G - Mental Health
- Section H - Substance Abuse Treatment
- Section X - New Technology
Section 0 - Medical and Surgical
The medical and surgical section codes represent the vast majority of procedures reported in an inpatient setting. The value of the first character of the Medical and Surgical procedure codes is "0". The second character indicates the general body system (e.g., central nervous system, muscles, skin and breast, tendons, gastrointestinal, etc). The third character indicates the root operation, or specific objective, of the procedure (e.g., bypass, change, dilation, drainage, excision, etc). The fourth character indicates the specific body part on which the procedure was performed (e.g., duodenum). The fifth character indicates the approach used to reach the procedure site (e.g., open). The sixth character indicates whether any device was used and remained at the end of the procedure (e.g., synthetic substitute). The seventh character is a qualifier that may have a specific meaning for a limited range of values.
00 - Central Nervous System and Cranial Nerves
01 - Peripheral Nervous System
02 - Heart and Great Vessels
03 - Upper Arteries
04 - Lower Arteries
05 - Upper Veins
06 - Lower Veins
07 - Lymphatic and Hemic Systems
08 - Eye
09 - Ear, Nose, Sinus
0B - Respiratory System
0C - Mouth and Throat
0D - Gastrointestinal System
0F - Hepatobiliary System and Pancreas
0G - Endocrine System
0H - Skin and Breast
0J - Subcutaneous Tissue and Fascia
0K - Muscles
0L - Tendons
0M - Bursae and Ligaments
0N - Head and Facial Bones
0P - Upper Bones
0Q - Lower Bones
0R - Upper Joints
0S - Lower Joints
0T - Urinary System
0U - Female Reproductive System
0V - Male Reproductive System
0W - Anatomical Regions, General
0X - Anatomical Regions, Upper Extremities
0Y - Anatomical Regions, Lower Extremities
Section 1 - Obstetrics
Obstetrics procedure codes have a first character value of "1". The second character value for body system is Pregnancy. The root operations Change, Drainage, Extraction, Insertion, Inspection, Removal, Repair, Reposition, Resection and Transplantation are used in the obstetrics section, and have the same meaning as in the medical and surgical section.
10 - Pregnancy
Section 2 - Placement
Placement section codes represent procedures for putting an externally placed device in or on a body region for the purpose of protection, immobilization, stretching, compression or packing. Placement procedure codes have a first character value of "2". The second character value for body system is either anatomical regions or anatomical orifices. The root operations Change and Removal are contained in the placement section, and have the same meaning as in the medical and surgical section.
Section 3 - Administration
Administration section codes represent procedures for putting in or on a therapeutic, prophylactic, protective, diagnostic, nutritional or physiological substance. Administration procedure codes have a first character value of "3". The body system character contains three values: circulatory system, indwelling device, and physiological systems and anatomical regions. The circulatory body system is used for transfusion procedures.
Section 4 - Measurement and Monitoring
Measurement and monitoring section codes represent procedures for determining the level of a physiological or physical function. Measurement and monitoring procedure codes have a first character value of "4". The second character value for body system is either physiological systems or physiological devices.
Section 5 - Extracorporeal or Systemic Assistance and Performance
In extracorporeal assistance and performance procedures, equipment outside the body is used to assist or perform a physiological function. Extracorporeal assistance and performance procedure codes have a first character value of "5". The second character value for body system is physiological systems.
5A - Physiological Systems
Section 6 - Extracorporeal or Systemic Therapies
In extracorporeal therapy, equipment outside the body is used for a therapeutic purpose that does not involve the assistance or performance of a physiological function. Extracorporeal therapy procedure codes have a first character value of "6". The second character value for body system is physiological systems.
6A - Physiological Systems
Section 7 - Osteopathic
Osteopathic procedure codes have a first character value of "7". The body system character contains the value anatomical regions. There is only one root operation in the osteopathic section.
7W - Anatomical Regions
Section 8 - Other Procedures
The other procedures section includes acupuncture, suture removal and in vitro fertilization. Codes in this section have a first character value of "8". The second character value for body system is physiological systems and anatomical regions.
Section 9 - Chiropractic
Chiropractic section procedure codes have a first character value of "9". The second character value for body system is anatomical regions. There is only one root operation in the chiropractic section.
9W - Anatomical Regions
Section B - Imaging
Imaging procedure codes have a first character value of "B". Imaging section codes represent procedures including plain radiography, fluoroscopy, CT, MRI, and ultrasound. Nuclear medicine procedure codes, including PET, uptakes, and scans, are in the nuclear medicine section. Therapeutic radiation procedure codes are in a separate radiation oncology section.
B0 - Central Nervous System
B2 - Heart
B3 - Upper Arteries
B4 - Lower Arteries
B5 - Veins
B7 - Lymphatic System
B8 - Eye
B9 - Ear, Nose, Mouth and Throat
BB - Respiratory System
BD - Gastrointestinal System
BF - Hepatobiliary System and Pancreas
BG - Endocrine System
BH - Skin, Subcutaneous Tissue and Breast
BL - Connective Tissue
BN - Skull and Facial Bones
BP - Non-Axial Upper Bones
BQ - Non-Axial Lower Bones
BR - Axial Skeleton, Except Skull and Facial Bones
BT - Urinary System
BU - Female Reproductive System
BV - Male Reproductive System
BW - Anatomical Regions
BY - Fetus and Obstetrical
Section C - Nuclear Medicine
Nuclear medicine section codes represent procedures that introduce radioactive material into the body in order to create an image, to diagnose and treat pathologic conditions, or to assess metabolic functions. The nuclear medicine section does not include the introduction of encapsulated radioactive material for the treatment of cancer. These procedures are included in the radiation oncology section. Nuclear medicine procedure codes have a first character value of "C". The second character specifies the body system on which the nuclear medicine procedure is performed. The third character root type indicates the type of nuclear medicine procedure (e.g., planar imaging or non-imaging uptake).
C0 - Central Nervous System
C2 - Heart
C5 - Veins
C7 - Lymphatic and Hematologic System
C8 - Eye
C9 - Ear, Nose, Mouth and Throat
CB - Respiratory System
CD - Gastrointestinal System
CF - Hepatobiliary System and Pancreas
CG - Endocrine System
CH - Skin, Subcutaneous Tissue and Breast
CP - Musculoskeletal System
CT - Urinary System
CV - Male Reproductive System
CW - Anatomical Regions
Section D - Radiation Therapy
Radiation oncology procedure codes have a first character value of "D". The second character specifies the body system (e.g., central nervous, musculoskeletal) irradiated. The third character root type specifies the general modality used (e.g., beam radiation) and the fifth character further specifies the radiation modality used (e.g., photons, electrons). The fourth character specifies the body part that is the focus of the radiation therapy. The sixth character specifies the isotopes introduced into the body, if applicable, or whether the beam used is a gamma beam or other photon. The seventh character is not specified in the radiation oncology section, and always has the value None.
D0 - Central and Peripheral Nervous System
D7 - Lymphatic and Hematologic System
D8 - Eye
D9 - Ear, Nose, Mouth and Throat
DB - Respiratory System
DD - Gastrointestinal System
DF - Hepatobiliary System and Pancreas
DG - Endocrine System
DH - Skin
DM - Breast
DP - Musculoskeletal System
DT - Urinary System
DU - Female Reproductive System
DV - Male Reproductive System
DW - Anatomical Regions
Section F - Physical Rehabilitation and Diagnostic Audiology
Physical rehabilitation section codes represent procedures including physical therapy, occupational therapy and speech-language pathology. Osteopathic procedures and chiropractic procedures are in sections 7 and 9 respectively. Physical rehabilitation and diagnostic audiology procedure codes have a first character value of "F". The second character specifies the section qualifier Rehabilitation or Diagnostic Audiology. The third character specifies the root type.
Section G - Mental Health
Mental Health procedure codes have a first character value of "G". The second character is used to identify the body system elsewhere in ICD-10-PCS. Because body system does not apply in this section, the second character always has the value None. The third character specifies the root type, such as crisis intervention or counseling. The fourth character is a type qualifier (e.g., to indicate that counseling was educational or vocational). The fifth, sixth and seventh characters are not specified and always have the value None.
GZ - None
Section H - Substance Abuse Treatment
Substance abuse treatment codes have a first character value of "H". The second character is used to identify the body system elsewhere in ICD-10-PCS. Because body system does not apply in this section, the second character always has the value None. The third character specifies the root type. Examples include detoxification services and individual counseling. The fourth character is a type qualifier that further specifies the procedure type. The individual counseling procedure further specified in the fourth character includes the values Cognitive Behavioral, 12-step, and Interpersonal. The fifth, sixth and seventh characters are not specified and always have the value None.
HZ - Substance Abuse Treatment
Section X - New Technology
Section X codes are standalone codes. They are not supplemental codes. Section X codes fully represent the specific procedure described in the code title, and do not require any additional codes from other sections of ICD-10-PCS. When section X contains a code title which describes a specific new technology procedure, only that X code is reported for the procedure. There is no need to report a broader, non-specific code in another section of ICD-10-PCS.
X2 - Cardiovascular System
XH - Skin, Subcutaneous Tissue, Fascia and Breast
XK - Muscles, Tendons, Bursae and Ligaments
XN - Bones
XR - Joints
XW - Anatomical Regions
XY - Extracorporeal
XT - Urinary System
XV - Male Reproductive System
XX - Physiological Systems
X2 - Cardiovascular System
XD - Gastrointestinal System
XF - Hepatobiliary System and Pancreas
XW - Anatomical Regions
X0 - Nervous System
