2025 ICD-10-CM Procedure Code 0NB00ZX
Excision of Skull, Open Approach, Diagnostic
- ICD-10-PCS Code:
- 0NB00ZX
- ICD-10-PCS Code for:
- Excision of Skull, Open Approach, Diagnostic
- Is Billable?
- Yes - Valid for Submission
- Code Navigator:
0NB00ZX is a billable procedure code used to specify the performance of excision of skull, open approach, diagnostic. The code is valid for the year 2025 for the submission of HIPAA-covered transactions. The procedure code involves cutting out or off, without replacement, a portion of a body part. Procedure code explanation: the qualifier diagnostic is used to identify excision procedures that are biopsies partial nephrectomy, liver biopsy
0NB00ZX PCS Table
In an PCS table each code is represented by up seven alphanumeric characters, with each character in the table respresenting different aspects of the procedure. In the table provided below, each row represents an individual character and includes information about the character's position, designation, label, and procedure notes. For this PCS table the procedure code is in the medical and surgical section and is part of the head and facial bones body system, classified under excision operation. The applicable bodypart for this procedure code is skull.
| Position | Designation | Character | Label | Procedures Notes |
|---|---|---|---|---|
| 1 | Section | 0 | Medical and Surgical | |
| 2 | Body System | N | Head and Facial Bones | |
| 3 | Operation | B | Excision | Involves: Explanation:
|
| 4 | BodyPart | 0 | Skull | |
| 5 | Approach | 0 | Open | Involves: |
| 6 | Device | Z | No Device | Explanation: |
| 7 | Qualifier | X | Diagnostic |
Clinical Classification
Bone and joint biopsy
CCSR Code: MST002
Clinical Domain: Musculoskeletal, Subcutaneous Tissue, and Fascia Procedures MST contains 30 categories that include procedures performed on the musculoskeletal, subcutaneous tissue, and fascia. Examples include hip arthroplasty, knee arthroplasty, spine fusion, and toe and midfoot amputation.
Convert to ICD-9-PCS
Below are the ICD-9=PCS code(s) that most closely match this ICD-10-PCS code, based on the General Equivalence Mappings (GEMs). This ICD-10-PCS to ICD-9-PCS crosswalk tool is helpful for coders who need to reference legacy diagnosis codes for audits, historical claims, or approximate code comparisons.
ICD-9-PCS Code
Code: 115
Approximate Flag: This is an approximate match. The ICD-9-PCS code reflects a close but not exact equivalent of the ICD-10-PCS procedure.
Other ICD-10-PCS Codes Used for Excision Skull
What is ICD-10-PCS?
The ICD-10 Procedure Coding System (ICD-10-PCS) is a catalog of procedural codes used by medical professionals for hospital inpatient healthcare settings. The Centers for Medicare and Medicaid Services (CMS) maintain the catalog in the U.S. releasing yearly updates. The 2025 ICD-10-PCS codes are to be used for discharges occurring from October 1, 2024 through September 30, 2025.
Each ICD-10-PCS code has a structure of seven alphanumeric characters and contains no decimals. The first character defines the major "section". Depending on the "section" the second through seventh characters mean different things.
