2027 ICD-10-CM Diagnosis Code S62.312ADisplaced fracture of base of third metacarpal bone, right hand, initial encounter for closed fracture

ICD-10-CM Codes›S00–T88›S60-S69›S62

ICD-10-CM S62.312A
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

S62.312A is a billable ICD-10-CM diagnosis code for displaced fracture of base of third metacarpal bone, right hand, initial encounter for closed fracture. The 7th character A means initial encounter for closed fracture, 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 562 through 563, 963 through 965. Coders also document this condition as closed fracture of base of third metacarpal. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Fracture of the upper limb, initial encounter.

Code Identity

ICD-10-CM Code
S62.312A
Billable Status
Yes — Valid for Submission
Code Describes
Displaced fracture of base of third metacarpal bone, right hand, initial encounter for closed fracture
Short Description
Disp fx of base of third metacarpal bone, right hand, init
Parent Code
S62.312
Displaced fracture of base of third metacarpal bone, right hand

Code Classification

ChapterS00–T88Injury, poisoning and certain other consequences of external causes
SectionS60-S69Injuries to the wrist, hand and fingers
CategoryS62Fracture at wrist and hand level
This CodeS62.312ADisplaced fracture of base of third metacarpal bone, right hand, initial encounter for closed fracture

Quality Payment Program MeasuresBilling

Medicare quality measures that can apply when S62.312A is part of the patient record.

Communication with the Physician or Other Clinician Managing On-Going Care Post-Fracture for Men and Women Aged 50 Years and Older

High Priority: YES

Measure Type: Process

Submission Methods: Claims, Registry

Description: Percentage of patients aged 50 years and older treated for a fracture with documentation of communication, between the physician treating the fracture and the physician or other clinician managing the patient’s on-going care, that a fracture occurred and that the patient was or should be considered for osteoporosis treatment or testing. This measure is submitted by the physician who treats the fracture and who therefore is held accountable for the communication.

View Measure

Osteoporosis Management in Women Who Had a Fracture

High Priority: NO

Measure Type: Process

Submission Methods: Claims, Registry

Description: The percentage of women 50-85 years of age who suffered a fracture and who had either a bone mineral density (BMD) test or prescription for a drug to treat osteoporosis in the 180 days after the fracture.

View Measure

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Closed fracture of base of third metacarpal
  • Closed fracture of base of third metacarpal bone of right hand
  • Closed fracture of third metacarpal bone of right hand
  • Fracture of base of third metacarpal bone
  • Fracture of base of third metacarpal bone of right hand
  • Open fracture of base of third metacarpal bone
  • Open fracture of base of third metacarpal bone of right hand
  • Open fracture of third metacarpal bone of right hand

Coding GuidelinesGuidance

The principles of multiple coding of injuries should be followed in coding fractures. Fractures of specified sites are coded individually by site, to the level of detail furnished by medical record content.

A fracture not indicated as open or closed should be coded to closed. A fracture not indicated whether displaced or not displaced should be coded to displaced.

Initial vs. Subsequent Encounter for Fractures

Traumatic fractures are coded using the appropriate 7th character for initial encounter (A, B, C) while the patient is receiving active treatment for the fracture. The appropriate 7th character for initial encounter should also be assigned for a patient who delayed seeking treatment for the fracture or nonunion.

Fractures are coded using the appropriate 7th character for subsequent care for encounters after the patient has completed active treatment of the fracture and is receiving routine care for the fracture during the healing or recovery phase.

Care for complications of surgical treatment for fracture repairs during the healing or recovery phase should be coded with the appropriate complication codes.

Care of complications of fractures, such as malunion and nonunion, should be reported with the appropriate 7th character for subsequent care with nonunion (K, M, N) or subsequent care with malunion (P, Q, R).

The open fracture designations in the assignment of the 7th character for fractures of the forearm, femur and lower leg, including ankle are based on the Gustilo open fracture classification. When the Gustilo classification type is not specified for an open fracture, the 7th character for open fracture type I or II should be assigned (B, E, H, M, Q).

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 S62.312A: its own notes plus those printed at S62.3, S62, block S60-S69, and Chapter 19. 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.

From S62 Fracture at wrist and hand level applies to 1,911 codes
  • traumatic amputation of wrist and hand (S68.-)

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 S62.3 Fracture of other and unspecified metacarpal bone applies to 560 codes
  • fracture of first metacarpal bone (S62.2-)
From S62 Fracture at wrist and hand level applies to 1,911 codes
  • fracture of distal parts of ulna and radius (S52.-)
From Block S60-S69 Injuries to the wrist, hand and fingers applies to 5,118 codes
  • burns and corrosions (T20-T32)
  • frostbite (T33-T34)
  • insect bite or sting, venomous (T63.4)
From Chapter 19 (S00-T88) Injury, poisoning and certain other consequences of external causes applies to 41,187 codes

Use Additional Code

Add a second code, after this one, to fully describe the condition.

From Chapter 19 (S00-T88) Injury, poisoning and certain other consequences of external causes applies to 41,187 codes
  • code to identify any retained foreign body, if applicable (Z18.-)

Notes

General instructions on how these codes are used.

From S62 Fracture at wrist and hand level applies to 1,911 codes
  • A fracture not indicated as displaced or nondisplaced should be coded to displaced
  • A fracture not indicated as open or closed should be coded to closed
From Chapter 19 (S00-T88) Injury, poisoning and certain other consequences of external causes applies to 41,187 codes
  • 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.

From S62 Fracture at wrist and hand level applies to 1,911 codes
  • The appropriate 7th character is to be added to each code from category S62
Values for category S62 Open or Closed Fracture Encounter
  • Ainitial encounter for closed fracture this code
  • Binitial encounter for open fracture
  • Dsubsequent encounter for fracture with routine healing
  • Gsubsequent encounter for fracture with delayed healing
  • Ksubsequent encounter for fracture with nonunion
  • Psubsequent encounter for fracture with malunion
  • Ssequela

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

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name S62.312A, its category, or a range that includes it.

Excludes1 3

These codes carry an Excludes1 note naming S62.312A: they are not reported together with it, unless the two conditions are unrelated.

  • M84.3 Stress fracture
    traumatic fracture (S12.-, S22.-, S32.-, S42.-, S52.-, S62.-, S72.-, S82.-, S92.-) names S62.-, which includes this code
  • M84.4 Pathological fracture, not elsewhere classified
    traumatic fracture (S12.-, S22.-, S32.-, S42.-, S52.-, S62.-, S72.-, S82.-, S92.-) names S62.-, which includes this code
  • S61 Open wound of wrist, hand and fingers
    open fracture of wrist, hand and finger (S62.- with 7th character B) names S62.-, which includes this code

Excludes2 1

These codes carry an Excludes2 note naming S62.312A: its condition is not part of those codes, and both may be reported when the patient has both.

  • S52 Fracture of forearm
    fracture at wrist and hand level (S62.-) names S62.-, which includes this code

Use Additional Code 1

These codes say to use an additional code from the note, and S62.312A is one of the codes named.

  • S67 Crushing injury of wrist, hand and fingers
    fracture of wrist and hand (S62.-) names S62.-, which includes this code

Clinical ClassificationClinical

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

CCSR INJ004
Fracture of the upper limb, initial encounter
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Fractures

A fracture is a break in a bone. Fractures are usually caused by injuries. Since they can sometimes be serious, it's important to get medical care right away if you think you have a fracture.

The full article covers:

  • What is a fracture?
  • What are the different types of fractures?
  • What causes fractures?
  • What are the symptoms of a fracture?
  • How are fractures diagnosed?
  • What are the treatments for fractures?
  • Can fractures be prevented?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert S62.312A to ICD-9-CMHistory

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

ICD-9-CM
815.02 Fx metacarp base NEC-cl
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 S62.312AOverview

Is S62.312A a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report displaced fracture of base of third metacarpal bone, right hand, initial encounter for closed fracture on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What does the 7th character A in S62.312A mean?

The final character A marks the initial encounter: use it while the patient is receiving active treatment for displaced fracture of base of third metacarpal bone, right hand, such as an emergency visit or first evaluation. In this category the CMS Tabular List defines A as "initial encounter for closed fracture".

What MS-DRG does S62.312A group to?

When displaced fracture of base of third metacarpal bone, right hand, initial encounter for closed fracture is the principal diagnosis on an inpatient stay, it groups to MS-DRG 563, 964, 965, 562, 963, with relative weights from 0.8982 to 2.6361 depending on complications. Higher weights mean higher Medicare reimbursement.

Can S62.312A be reported with a code from S68?

Not as a rule. The Excludes1 note at S62, which applies to S62.312A, lists "traumatic amputation of wrist and hand (S68.-)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).

What is the ICD-9 equivalent of S62.312A?

Under the General Equivalence Mappings, displaced fracture of base of third metacarpal bone, right hand, initial encounter for closed fracture converts to ICD-9-CM 815.02 (fx metacarp base NEC-cl). The mapping is approximate, so confirm the match fits the documentation.