2021 ICD-10-CM Diagnosis Code S90.425A

Blister (nonthermal), left lesser toe(s), initial encounter

    2016 2017 2018 2019 2020 2021 Billable/Specific Code
  • S90.425A is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2021 edition of ICD-10-CM S90.425A became effective on October 1, 2020.
  • This is the American ICD-10-CM version of S90.425A - other international versions of ICD-10 S90.425A may differ.
The following code(s) above S90.425A contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to S90.425A:
  • S00-T88
    2021 ICD-10-CM Range S00-T88

    Injury, poisoning and certain other consequences of external causes

    • 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
    Type 1 Excludes
    Use Additional
    • code to identify any retained foreign body, if applicable (Z18.-)
    Injury, poisoning and certain other consequences of external causes
  • S90-S99
    2021 ICD-10-CM Range S90-S99

    Injuries to the ankle and foot

    Type 2 Excludes
    • burns and corrosions (T20-T32)
    • fracture of ankle and malleolus (S82.-)
    • frostbite (T33-T34)
    • insect bite or sting, venomous (T63.4)
    Injuries to the ankle and foot
Approximate Synonyms
  • Blister of left lesser toe
  • Blister of left lesser toe with infection
  • Left lesser toe blister
  • Left lesser toe blister, with infection
ICD-10-CM S90.425A is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):
  • 606 Minor skin disorders with mcc
  • 607 Minor skin disorders without mcc
  • 963 Other multiple significant trauma with mcc
  • 964 Other multiple significant trauma with cc
  • 965 Other multiple significant trauma without cc/mcc

Convert S90.425A to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change
ICD-10-CM Codes Adjacent To S90.425A
S90.422S …… sequela
S90.423 Blister (nonthermal), unspecified great toe
S90.423A …… initial encounter
S90.423D …… subsequent encounter
S90.423S …… sequela
S90.424 Blister (nonthermal), right lesser toe(s)
S90.424A …… initial encounter
S90.424D …… subsequent encounter
S90.424S …… sequela
S90.425 Blister (nonthermal), left lesser toe(s)
S90.425A …… initial encounter
S90.425D …… subsequent encounter
S90.425S …… sequela
S90.426 Blister (nonthermal), unspecified lesser toe(s)
S90.426A …… initial encounter
S90.426D …… subsequent encounter
S90.426S …… sequela
S90.44 External constriction of toe
S90.441 External constriction, right great toe
S90.441A …… initial encounter
S90.441D …… subsequent encounter

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.