2027 ICD-10-CM Diagnosis Code S60.429ABlister (nonthermal) of unspecified finger, initial encounter

ICD-10-CM Codes›S00–T88›S60-S69›S60

ICD-10-CM S60.429A
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

S60.429A is a billable ICD-10-CM diagnosis code for blister (nonthermal) of unspecified finger, 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 606 through 607, 963 through 965. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Superficial injury; contusion, initial encounter.

Code Identity

ICD-10-CM Code
S60.429A
Billable Status
Yes — Valid for Submission
Code Describes
Blister (nonthermal) of unspecified finger, initial encounter
Short Description
Blister (nonthermal) of unspecified finger, init encntr
Parent Code
S60.429
Blister (nonthermal) of unspecified finger

Code Classification

ChapterS00–T88Injury, poisoning and certain other consequences of external causes
SectionS60-S69Injuries to the wrist, hand and fingers
CategoryS60Superficial injury of wrist, hand and fingers
This CodeS60.429ABlister (nonthermal) of unspecified finger, initial encounter

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Blister of finger of left hand with infection
  • Blister of finger of right hand with infection
  • Blister of finger with infection
  • Blister of finger without infection
  • Blister of hand without infection
  • Left hand blister with infection
  • Right hand blister with infection
  • Traumatic blister of finger
  • Traumatic blister of finger of left hand
  • Traumatic blister of finger of right hand
  • Traumatic blister of finger, infected
  • Traumatic blister of hand, infected
  • Traumatic blister of index finger
  • Traumatic blister of left hand
  • Traumatic blister of little finger
  • Traumatic blister of middle finger
  • Traumatic blister of right hand
  • Traumatic blister of ring finger

Coding GuidelinesGuidance

The appropriate 7th character is to be added to each code from block Superficial injury of wrist, hand and fingers (S60). 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 S60.429A: its own notes plus those printed at S60, block S60-S69, and Chapter 19. A note printed at a category, block or chapter applies to every code under it.

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 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 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 S60 Superficial injury of wrist, hand and fingers applies to 522 codes
  • The appropriate 7th character is to be added to each code from category S60
Values for category S60 Encounter: Initial, Subsequent, Sequela
  • Ainitial encounter this code
  • Dsubsequent encounter
  • 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 S60.429A, its category, or a range that includes it.

Excludes2 2

These codes carry an Excludes2 note naming S60.429A: its condition is not part of those codes, and both may be reported when the patient has both.

  • S50 Superficial injury of elbow and forearm
    superficial injury of wrist and hand (S60.-) names S60.-, which includes this code
  • S60.5 Other superficial injuries of hand
    superficial injuries of fingers (S60.3-, S60.4-) names S60.4-, which includes this code

Clinical ClassificationClinical

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

CCSR INJ017
Superficial injury; contusion, initial encounter
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Blisters

Blisters are fluid-filled sacs on the outer layer of your skin. They form because of rubbing, heat, or diseases of the skin. They are most common on your hands and feet.

The full article covers:

  • What are blisters?
  • What causes blisters?
  • What are the treatments for blisters?
  • Can blisters be prevented?

Read the full article at MedlinePlus

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

Convert S60.429A to ICD-9-CMHistory

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

ICD-9-CM
915.2 Blister finger
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 S60.429AOverview

What is the ICD-10 code for blister (nonthermal) of unspecified finger, initial encounter?

The ICD-10-CM code for blister (nonthermal) of unspecified finger, initial encounter is S60.429A (sometimes written as S60429A). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is S60.429A (Blister (nonthermal) of unspecified finger) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report blister (nonthermal) of unspecified finger, initial encounter on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What does the 7th character A in S60.429A mean?

The final character A marks the initial encounter: use it while the patient is receiving active treatment for blister (nonthermal) of unspecified finger, such as an emergency visit or first evaluation.

What MS-DRG does S60.429A group to?

When blister (nonthermal) of unspecified finger, initial encounter is the principal diagnosis on an inpatient stay, it groups to MS-DRG 964, 965, 607, 963, 606, with relative weights from 0.8772 to 2.6361 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of S60.429A?

Under the General Equivalence Mappings, blister (nonthermal) of unspecified finger, initial encounter converts to ICD-9-CM 915.2 (blister finger). The mapping is approximate, so confirm the match fits the documentation.