2026 ICD-10-CM Diagnosis Code H95.31Accidental puncture and laceration of the ear and mastoid process during a procedure on the ear and mastoid process

ICD-10-CM Codes›H60–H95›H95›H95

ICD-10-CM H95.31
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

H95.31 is a billable ICD-10-CM diagnosis code for accidental puncture and laceration of the ear and mastoid process during a procedure on the ear and mastoid process. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 919 through 921. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Postprocedural or postoperative ear and/or mastoid process complication.

Code Identity

ICD-10-CM Code
H95.31
Billable Status
Yes — Valid for Submission
Code Describes
Accidental puncture and laceration of the ear and mastoid process during a procedure on the ear and mastoid process
Short Description
Acc pnctr & lac of the ear/mastd dur proc on the ear/mastd
Parent Code
H95.3
Accidental puncture and laceration of ear and mastoid process during a procedure

Code Classification

ChapterH60–H95Diseases of the ear and mastoid process
SectionH95Intraoperative and postprocedural complications and disorders of ear and mastoid process, not elsewhere classified
CategoryH95Intraoperative and postprocedural complications and disorders of ear and mastoid process, not elsewhere classified
This CodeH95.31Accidental puncture and laceration of the ear and mastoid process during a procedure on the ear and mastoid process

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Complication(s) (from) (of)
      • intraoperative (intraprocedural)
        • puncture or laceration (accidental) (unintentional) (of)
          • ear
            • during procedure on ear and mastoid process
    • Complication(s) (from) (of)
      • intraoperative (intraprocedural)
        • puncture or laceration (accidental) (unintentional) (of)
          • mastoid process
            • during procedure on ear and mastoid process

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR EAR005
Postprocedural or postoperative ear and/or mastoid process complication
Default principal diagnosis: inpatient Yes · outpatient Yes

Convert H95.31 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
998.2 Accidental op laceration
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About H95.31Overview

Is H95.31 a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report accidental puncture and laceration of the ear and mastoid process during a procedure on the ear and mastoid process on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does H95.31 group to?

When accidental puncture and laceration of the ear and mastoid process during a procedure on the ear and mastoid process is the principal diagnosis on an inpatient stay, it groups to MS-DRG 919, 920, 921, with relative weights from 0.6884 to 1.8308 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of H95.31?

Under the General Equivalence Mappings, accidental puncture and laceration of the ear and mastoid process during a procedure on the ear and mastoid process converts to ICD-9-CM 998.2 (accidental op laceration). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.