2027 ICD-10-CM Diagnosis Code S35.291AMinor laceration of branches of celiac and mesenteric artery, initial encounter
ICD-10-CM Codes›S00–T88›S30-S39›S35
- Billable — Valid for Submission
- MCC — Major Complication or Comorbidity
- 7th Character A — Initial Encounter
- Not Chronic
S35.291A is a billable ICD-10-CM diagnosis code for minor laceration of branches of celiac and mesenteric artery, initial encounter. The 7th character A marks it as an initial encounter code, used while the patient is receiving active treatment. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 913 through 914, 963 through 965. As a secondary diagnosis, it counts as a major complication or comorbidity (MCC) and places an inpatient stay in the highest severity level of its MS-DRG family. It does not count, however, when the principal diagnosis is one of 16 closely related codes. Coders also document this condition as injury of splenic artery. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Injury to blood vessels, initial encounter.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Injury of splenic artery
- Laceration of abdominal blood vessel
- Laceration of splenic artery
Coding GuidelinesGuidance
The appropriate 7th character is to be added to each code from block Injury of blood vessels at abdomen, lower back and pelvis level (S35). Use the following options for the applicable episode of care:
- A - initial encounter
- D - subsequent encounter
- S - sequela
Source: ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027, published by CMS and the National Center for Health Statistics.
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to S35.291A: its own notes plus those printed at S35, block S30-S39, and Chapter 19. A note printed at a category, block or chapter applies to every code under it.
Includes
Further defines, or gives examples of, the content of the category.
- injuries to the abdominal wall
- injuries to the anus
- injuries to the buttock
- injuries to the external genitalia
- injuries to the flank
- injuries to the groin
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.
Use Additional Code
Add a second code, after this one, to fully describe the condition.
- code to identify any retained foreign body, if applicable (Z18.-)
Code Also
A second code may be needed to fully describe the condition; the note gives no sequencing direction.
Notes
General instructions on how these codes are used.
- Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
- The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.
7th Character
Every code in the category takes a 7th character from the listed values, with the placeholder X filling any empty positions before it.
- The appropriate 7th character is to be added to each code from category S35
- Ainitial encounter this code
- Dsubsequent encounter
- Ssequela
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Wounds and Injuries
An injury is damage to your body. It is a general term that refers to harm caused by accidents, falls, hits, weapons, and more. In the U.S., millions of people injure themselves every year. These injuries range from minor to life-threatening.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert S35.291A to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About S35.291AOverview
Is S35.291A (Minor laceration of branches of celiac and mesenteric artery) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report minor laceration of branches of celiac and mesenteric artery, initial encounter on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What does the 7th character A in S35.291A mean?
The final character A marks the initial encounter: use it while the patient is receiving active treatment for minor laceration of branches of celiac and mesenteric artery, such as an emergency visit or first evaluation.
What MS-DRG does S35.291A group to?
When minor laceration of branches of celiac and mesenteric artery, initial encounter is the principal diagnosis on an inpatient stay, it groups to MS-DRG 964, 965, 914, 913, 963, with relative weights from 0.9281 to 2.6361 depending on complications. Higher weights mean higher Medicare reimbursement.
Is S35.291A a CC or MCC?
CMS lists S35.291A as an MCC (major complication or comorbidity) for FY 2027. Reported as a secondary diagnosis, it places the inpatient stay in the highest-weighted DRG of its severity family. It does not count when the principal diagnosis is one of the 16 closely related codes in its exclusion list.
What is the ICD-9 equivalent of S35.291A?
Under the General Equivalence Mappings, minor laceration of branches of celiac and mesenteric artery, initial encounter converts to ICD-9-CM 902.20 (inj celiac/mesen art NOS), 902.21 (injury gastric artery), and 902.22 (injury hepatic artery). The mapping is approximate, so confirm the match fits the documentation.
