2027 ICD-10-CM Diagnosis Code E36.12Accidental puncture and laceration of an endocrine system organ or structure during other procedure
ICD-10-CM Codes›E00–E89›E36›E36
- Billable — Valid for Submission
- CC — Complication or Comorbidity
- Not Chronic
E36.12 is a billable ICD-10-CM diagnosis code for accidental puncture and laceration of an endocrine 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. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Postprocedural or postoperative endocrine or metabolic complication.
Code Identity
Code Classification
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to E36.12: its own notes plus those printed at E36 and Chapter 4. A note printed at a category, block or chapter applies to every code under it.
Excludes1
Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.
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.
Notes
General instructions on how these codes are used.
- All neoplasms, whether functionally active or not, are classified in Chapter 2. Appropriate codes in this chapter (i.e. E05.8, E07.0, E16-E31, E34.-) may be used as additional codes to indicate either functional activity by neoplasms and ectopic endocrine tissue or hyperfunction and hypofunction of endocrine glands associated with neoplasms and other conditions classified elsewhere.
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name E36.12, its category, or a range that includes it.
Excludes1 1
These codes carry an Excludes1 note naming E36.12: they are not reported together with it, unless the two conditions are unrelated.
Excludes2 3
These codes carry an Excludes2 note naming E36.12: its condition is not part of those codes, and both may be reported when the patient has both.
- E89 Postprocedural endocrine and metabolic complications and disorders, not elsewhere classifiedintraoperative complications of endocrine system organ or structure (E36.0-, E36.1-, E36.8) names E36.1-, which includes this code
- Block T80-T88 Complications of surgical and medical care, not elsewhere classifiedintraoperative 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 E36.-, which includes this code
- T81 Complications of procedures, not elsewhere classifiedintraoperative 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 E36.-, 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.
Convert E36.12 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About E36.12Overview
Is E36.12 a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report accidental puncture and laceration of an endocrine system organ or structure during other procedure on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does E36.12 group to?
When accidental puncture and laceration of an endocrine 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 E36.12 a CC or MCC?
CMS lists E36.12 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 E36.12?
Under the General Equivalence Mappings, accidental puncture and laceration of an endocrine 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.
