099670ZDrainage of Left Middle Ear with Drainage Device, Via Natural or Artificial Opening

Medical and Surgical›Ear, Nose, Sinus›Drainage
  • Billable / Specific Code
ICD-10-PCS 099670Z
CMS Source: FY 2026 ICD-10-PCS dataset. Effective Oct 1, 2025 – Sep 30, 2026.FacebookXLinkedInPrint

099670Z is a billable ICD-10-PCS procedure code for Drainage of Left Middle Ear with Drainage Device, Via Natural or Artificial Opening. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRGs 143, 144, 145. The root operation Drainage involves taking or letting out fluids and/or gases from a body part.

Code Identity

ICD-10-PCS Code
099670Z
Billable Status
Yes — Valid for Submission
Code Describes
Drainage of Left Middle Ear with Drainage Device, Via Natural or Artificial Opening
Parent Code
099
Short Description
Drainage of Left Middle Ear with Drain Dev, Via Opening

PCS Table Breakdown

Each ICD-10-PCS code is built from seven characters, each an axis of the procedure. Hover or tap the icons for the official CMS definitions.

PositionDesignationValueMeaning
1Section0Medical and Surgical
2Body System9Ear, Nose, Sinus
3Operation9Drainage
4BodyPart6Middle Ear, Left
5Approach7Via Natural or Artificial Opening
6Device0Drainage Device
7QualifierZNo Qualifier

Convert to ICD-9-PCS

Closest ICD-9-PCS equivalents for 099670Z under the General Equivalence Mappings.

20.01
Approximate match.

Code History

Replaces previously assigned code(s):
  • 099600Z — Drainage of Left Middle Ear with Drain Dev, Open Approach

Similar Procedure Codes

Questions About 099670Z

Is 099670Z a billable code?

Yes. 099670Z is a complete seven-character ICD-10-PCS code, specific enough to report Drainage of Left Middle Ear with Drainage Device, Via Natural or Artificial Opening on inpatient claims from October 1, 2025 through September 30, 2026.

What do the characters in 099670Z mean?

099670Z breaks down character by character: the 1st character 0 is the Section (Medical and Surgical); the 2nd character 9 is the Body System (Ear, Nose, Sinus); the 3rd character 9 is the Operation (Drainage); the 4th character 6 is the BodyPart (Middle Ear, Left); the 5th character 7 is the Approach (Via Natural or Artificial Opening); the 6th character 0 is the Device (Drainage Device); the 7th character Z is the Qualifier (No Qualifier).

What MS-DRG does 099670Z group to?

On an inpatient stay, Drainage of Left Middle Ear with Drainage Device, Via Natural or Artificial Opening maps to MS-DRGs 143, 144, 145, with relative weights from 1.2023 to 3.7466. The MS-DRG sets the fixed Medicare payment for the stay.

What is the ICD-9-PCS equivalent of 099670Z?

Under the General Equivalence Mappings, Drainage of Left Middle Ear with Drainage Device, Via Natural or Artificial Opening crosswalks to ICD-9-PCS 20.01. The mapping is approximate, so confirm it fits the documentation.