2026 ICD-10-PCS Procedure Code 099R3ZX

Drainage of Left Maxillary Sinus, Percutaneous Approach, Diagnostic

ICD-10-PCS Code:: 099R3ZX
ICD-10-PCS Code for:: Drainage of Left Maxillary Sinus, Perc Approach, Diagn
Is Billable?: Yes - Valid for Submission
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099R3ZX is a billable procedure code used to specify the performance of drainage of left maxillary sinus, percutaneous approach, diagnostic. The code is valid for the year 2026 for the submission of HIPAA-covered transactions. The procedure code involves taking or letting out fluids and/or gases from a body part. Procedure code explanation: the qualifier diagnostic is used to identify drainage procedures that are biopsies thoracentesis, incision and drainage

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Code Information
PCS Table
Replaced Code
Convert to ICD-9-PCS
Other Similar Codes

099R3ZX 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 ear, nose, sinus body system, classified under drainage operation. The applicable bodypart for this procedure code is maxillary sinus, left.

Position	Designation	Character	Label	Procedures Notes
1	Section	0	Medical and Surgical
2	Body System	9	Ear, Nose, Sinus
3	Operation	9	Drainage	Involves: Taking or letting out fluids and/or gases from a body part Explanation: The qualifier DIAGNOSTIC is used to identify drainage procedures that are biopsies Includes: Thoracentesis, incision and drainage
4	BodyPart	R	Maxillary Sinus, Left	Includes: Antrum of Highmore
5	Approach	3	Percutaneous	Involves: Entry, by puncture or minor incision, of instrumentation through the skin or mucous membrane and any other body layers necessary to reach the site of the procedure
6	Device	Z	No Device	Explanation: The value Z is used for the sixth character to indicate that a specific device does not apply to the procedure.
7	Qualifier	X	Diagnostic

Replaced Code

099R3ZX was replaced in the 2026 ICD-10-PCS code set with the code(s):

099R7ZX - Drainage of Left Maxillary Sinus, Via Opening, Diagn
099R7ZX - Drainage of Left Maxillary Sinus, Via Opening, Diagn
099R7ZX - Drainage of Left Maxillary Sinus, Via Opening, Diagn
099R7ZX - Drainage of Left Maxillary Sinus, Via Opening, Diagn
099R7ZX - Drainage of Left Maxillary Sinus, Via Opening, Diagn
099R7ZX - Drainage of Left Maxillary Sinus, Via Opening, Diagn
099R7ZX - Drainage of Left Maxillary Sinus, Via Opening, Diagn

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: 2211

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 Drainage Maxillary Sinus, Left

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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 2026 ICD-10-PCS codes are to be used for discharges occurring from October 1, 2025 through September 30, 2026.

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.