2026 ICD-10-CM Diagnosis Code S63.412STraumatic rupture of collateral ligament of right middle finger at metacarpophalangeal and interphalangeal joint, sequela

ICD-10-CM Codes›S00–T88›S60-S69›S63

ICD-10-CM S63.412S
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

S63.412S is a billable ICD-10-CM diagnosis code for traumatic rupture of collateral ligament of right middle finger at metacarpophalangeal and interphalangeal joint, 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 562 through 563. The code is exempt from POA reporting. Coders also document this condition as traumatic rupture of collateral ligament of joint of middle finger. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Injury, sequela.

Code Identity

ICD-10-CM Code
S63.412S
Billable Status
Yes — Valid for Submission
Code Describes
Traumatic rupture of collateral ligament of right middle finger at metacarpophalangeal and interphalangeal joint, sequela
Short Description
Traum rupt of collat ligmt of r mid fngr at MCP/IP jt, sqla
Parent Code
S63.412
Traumatic rupture of collateral ligament of right middle finger at metacarpophalangeal and interphalangeal joint

Code Classification

ChapterS00–T88Injury, poisoning and certain other consequences of external causes
SectionS60-S69Injuries to the wrist, hand and fingers
CategoryS63Dislocation and sprain of joints and ligaments at wrist and hand level
This CodeS63.412STraumatic rupture of collateral ligament of right middle finger at metacarpophalangeal and interphalangeal joint, sequela

Present on Admission (POA)Billing

S63.412S is exempt from POA reporting on inpatient claims to general acute care hospitals. Review other POA exempt codes.

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Traumatic rupture of collateral ligament of joint of middle finger
  • Traumatic rupture of collateral ligament of joint of right middle finger
  • Traumatic rupture of ligament of joint of middle finger
  • Traumatic rupture of ligament of joint of right middle finger

Coding GuidelinesGuidance

The appropriate 7th character is to be added to each code from block Dislocation and sprain of joints and ligaments at wrist and hand level (S63). 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.

CCSR INJ073
Injury, sequela
Default principal diagnosis: inpatient Yes · outpatient Yes

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 S63.412S to ICD-9-CMHistory

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

ICD-9-CM
905.7 Late effec sprain/strain
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 S63.412SOverview

Is S63.412S a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report traumatic rupture of collateral ligament of right middle finger at metacarpophalangeal and interphalangeal joint, sequela on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What does the 7th character S in S63.412S mean?

The final character S makes this a sequela code: it reports a lingering problem that remains after the traumatic rupture of collateral ligament of right middle finger at metacarpophalangeal and interphalangeal joint itself has resolved, not the original event.

What MS-DRG does S63.412S group to?

When traumatic rupture of collateral ligament of right middle finger at metacarpophalangeal and interphalangeal joint, sequela is the principal diagnosis on an inpatient stay, it groups to MS-DRG 562, 563, with relative weights from 0.8955 to 1.4248 depending on complications. Higher weights mean higher Medicare reimbursement.

Is S63.412S 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 traumatic rupture of collateral ligament of right middle finger at metacarpophalangeal and interphalangeal joint, sequela on inpatient claims.

What is the ICD-9 equivalent of S63.412S?

Under the General Equivalence Mappings, traumatic rupture of collateral ligament of right middle finger at metacarpophalangeal and interphalangeal joint, sequela converts to ICD-9-CM 905.7 (late effec sprain/strain). 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.