2027 ICD-10-CM Diagnosis Code G97.49Accidental puncture and laceration of other nervous system organ or structure during other procedure

ICD-10-CM Codes›G00–G99›G89-G99›G97

ICD-10-CM G97.49
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

G97.49 is a billable ICD-10-CM diagnosis code for accidental puncture and laceration of other nervous system organ or structure during other procedure. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 791, 793, 919 through 921. As a secondary diagnosis, it counts as a complication or comorbidity (CC) and moves an inpatient stay to a higher severity level within its MS-DRG family. It does not count, however, when the principal diagnosis is one of 78 closely related codes. Coders also document this condition as avulsion of inferior alveolar nerve due to osteotomy. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Postprocedural or postoperative nervous system complication.

Code Identity

ICD-10-CM Code
G97.49
Billable Status
Yes — Valid for Submission
Code Describes
Accidental puncture and laceration of other nervous system organ or structure during other procedure
Short Description
Acc pnctr & lac of nervous sys org during oth procedure
Parent Code
G97.4
Accidental puncture and laceration of a nervous system organ or structure during a procedure

Code Classification

ChapterG00–G99Diseases of the nervous system
SectionG89-G99Other disorders of the nervous system
CategoryG97Intraoperative and postprocedural complications and disorders of nervous system, not elsewhere classified
This CodeG97.49Accidental puncture and laceration of other nervous system organ or structure during other procedure

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Avulsion of inferior alveolar nerve due to osteotomy

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to G97.49: its own notes plus those printed at G97 and Chapter 6. A note printed at a category, block or chapter applies to every code under it.

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From G97 Intraoperative and postprocedural complications and disorders of nervous system, not elsewhere classified applies to 18 codes
  • intraoperative and postprocedural cerebrovascular infarction (I97.81-, I97.82-)
From Chapter 6 (G00-G99) Diseases of the nervous system applies to 700 codes
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name G97.49, its category, or a range that includes it.

Excludes1 1

These codes carry an Excludes1 note naming G97.49: they are not reported together with it, unless the two conditions are unrelated.

  • G97.3 Intraoperative hemorrhage and hematoma of a nervous system organ or structure complicating a procedure
    intraoperative hemorrhage and hematoma of a nervous system organ or structure due to accidental puncture and laceration during a procedure (G97.4-) names G97.4-, which includes this code

Excludes2 3

These codes carry an Excludes2 note naming G97.49: its condition is not part of those codes, and both may be reported when the patient has both.

  • I97.5 Accidental puncture and laceration of a circulatory system organ or structure during a procedure
    accidental puncture and laceration of brain during a procedure (G97.4-) names G97.4-, which includes this code
  • Block T80-T88 Complications of surgical and medical care, not elsewhere classified
    intraoperative and postprocedural complications of specified body systems (D78.-, E36.-, E89.-, G97.3-, G97.4, H59.3-, H59.-, H95.2-, H95.3, I97.4-, I97.5, J95.6-, J95.7, K91.6-, L76.-, M96.-, N99.-) names G97.4, which includes this code
  • T81 Complications of procedures, not elsewhere classified
    intraoperative and postprocedural complications of specific body system (D78.-, E36.-, E89.-, G97.3-, G97.4, H59.3-, H59.-, H95.2-, H95.3, I97.4-, I97.5, J95, K91.-, L76.-, M96.-, N99.-) names G97.4, which includes this code

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

Clinical ClassificationClinical

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

CCSR NVS021
Postprocedural or postoperative nervous system complication
Default principal diagnosis: inpatient Yes · outpatient Yes

Convert G97.49 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 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About G97.49Overview

Is G97.49 a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report accidental puncture and laceration of other nervous system organ or structure during other procedure on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does G97.49 group to?

When accidental puncture and laceration of other nervous system organ or structure during other procedure is the principal diagnosis on an inpatient stay, it groups to MS-DRG 793, 791, 920, 919, 921, with relative weights from 0.6719 to 4.2192 depending on complications. Higher weights mean higher Medicare reimbursement.

Is G97.49 a CC or MCC?

CMS lists G97.49 as a CC (complication or comorbidity) for FY 2027. Reported as a secondary diagnosis, it moves the inpatient stay to a higher-weighted DRG within its severity family. It does not count when the principal diagnosis is one of the 78 closely related codes in its exclusion list.

What is the ICD-9 equivalent of G97.49?

Under the General Equivalence Mappings, accidental puncture and laceration of other nervous system organ or structure during other procedure converts to ICD-9-CM 998.2 (accidental op laceration). The mapping is approximate, so confirm the match fits the documentation.