2020 ICD-10-CM Diagnosis Code S90.423S

Blister (nonthermal), unspecified great toe, sequela

    2016 2017 2018 2019 2020 Billable/Specific Code POA Exempt
  • S90.423S is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2020 edition of ICD-10-CM S90.423S became effective on October 1, 2019.
  • This is the American ICD-10-CM version of S90.423S - other international versions of ICD-10 S90.423S may differ.
The following code(s) above S90.423S 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 S90.423S:
  • S00-T88
    2020 ICD-10-CM Range S00-T88

    Injury, poisoning and certain other consequences of external causes

    Note
    • 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
    2020 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
Present On Admission
POA Help
"Present On Admission" is defined as present at the time the order for inpatient admission occurs — conditions that develop during an outpatient encounter, including emergency department, observation, or outpatient surgery, are considered POA.
  • S90.423S is considered exempt from POA reporting.
ICD-10-CM S90.423S is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 604 Trauma to the skin, subcutaneous tissue and breast with mcc
  • 605 Trauma to the skin, subcutaneous tissue and breast without mcc

Convert S90.423S 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
ICD-10-CM Codes Adjacent To S90.423S
S90.421A …… initial encounter
S90.421D …… subsequent encounter
S90.421S …… sequela
S90.422 Blister (nonthermal), left great toe
S90.422A …… initial encounter
S90.422D …… subsequent encounter
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

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