2026 ICD-10-CM Diagnosis Code S65.590SOther specified injury of blood vessel of right index finger, sequela
S65.590S is a billable ICD-10-CM diagnosis code for other specified injury of blood vessel of right index finger, sequela. The 7th character S marks it as a sequela code, which reports a problem that remains after the original condition has resolved. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 299 through 301. The code is exempt from POA reporting. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Injury, sequela.
Code Identity
Code Classification
Present on Admission (POA)Billing
S65.590S is exempt from POA reporting on inpatient claims to general acute care hospitals. Review other POA exempt codes.
Coding GuidelinesGuidance
The appropriate 7th character is to be added to each code from block Injury of blood vessels at wrist and hand level (S65). 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 2026, published by CMS and the National Center for Health Statistics.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Finger Injuries and Disorders
You use your fingers and thumbs to do everything from grasping objects to playing musical instruments to typing. When there is something wrong with them, it can make life difficult. Common problems include:
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert S65.590S to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About S65.590SOverview
Is S65.590S (Other specified injury of blood vessel of right index finger) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report other specified injury of blood vessel of right index finger, sequela on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What does the 7th character S in S65.590S mean?
The final character S makes this a sequela code: it reports a lingering problem that remains after the other specified injury of blood vessel of right index finger itself has resolved, not the original event.
What MS-DRG does S65.590S group to?
When other specified injury of blood vessel of right index finger, sequela is the principal diagnosis on an inpatient stay, it groups to MS-DRG 299, 300, 301, with relative weights from 0.7197 to 1.6327 depending on complications. Higher weights mean higher Medicare reimbursement.
Is S65.590S exempt from POA reporting?
Yes. CMS lists this code among those exempt from present on admission reporting, so hospitals do not assign a POA indicator for other specified injury of blood vessel of right index finger, sequela on inpatient claims.
What is the ICD-9 equivalent of S65.590S?
Under the General Equivalence Mappings, other specified injury of blood vessel of right index finger, sequela converts to ICD-9-CM 908.3 (late eff inj periph vess). 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.
