2027 ICD-10-CM Diagnosis Code S60.424ABlister (nonthermal) of right ring finger, initial encounter
S60.424A is a billable ICD-10-CM diagnosis code for blister (nonthermal) of right ring 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. Coders also document this condition as blister of finger of right hand with infection. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Superficial injury; contusion, initial encounter.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Blister of finger of right hand with infection
- Right hand blister with infection
- Right ring finger blister with infection
- Superficial injury of right ring finger
- Traumatic blister of finger of right hand
- Traumatic blister of right hand
- Traumatic blister of right ring finger
- 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 S60.424A: 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.
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.-)
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 S60
- 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 S60.424A, its category, or a range that includes it.
Excludes2 2
These codes carry an Excludes2 note naming S60.424A: its condition is not part of those codes, and both may be reported when the patient has both.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
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 S60.424A to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About S60.424AOverview
What is the ICD-10 code for blister (nonthermal) of right ring finger, initial encounter?
The ICD-10-CM code for blister (nonthermal) of right ring finger, initial encounter is S60.424A (sometimes written as S60424A). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is S60.424A (Blister (nonthermal) of right ring finger) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report blister (nonthermal) of right ring finger, initial encounter on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What does the 7th character A in S60.424A mean?
The final character A marks the initial encounter: use it while the patient is receiving active treatment for blister (nonthermal) of right ring finger, such as an emergency visit or first evaluation.
What MS-DRG does S60.424A group to?
When blister (nonthermal) of right ring 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 S60.424A?
Under the General Equivalence Mappings, blister (nonthermal) of right ring finger, initial encounter converts to ICD-9-CM 915.2 (blister finger). The mapping is approximate, so confirm the match fits the documentation.
