2021 ICD-10-CM Diagnosis Code S80.221A

Blister (nonthermal), right knee, initial encounter

    2016 2017 2018 2019 2020 2021 Billable/Specific Code
  • S80.221A 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 S80.221A became effective on October 1, 2020.
  • This is the American ICD-10-CM version of S80.221A - other international versions of ICD-10 S80.221A may differ.
The following code(s) above S80.221A 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 S80.221A:
  • 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
  • S80-S89
    2021 ICD-10-CM Range S80-S89

    Injuries to the knee and lower leg

    Type 2 Excludes
    • burns and corrosions (T20-T32)
    • frostbite (T33-T34)
    • injuries of ankle and foot, except fracture of ankle and malleolus (S90-S99)
    • insect bite or sting, venomous (T63.4)
    Injuries to the knee and lower leg
  • S80
    ICD-10-CM Diagnosis Code S80

    Superficial injury of knee and lower leg

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Type 2 Excludes
    • superficial injury of ankle and foot (S90.-)
    Superficial injury of knee and lower leg
Approximate Synonyms
  • Right knee blister
  • Right knee blister with infection
ICD-10-CM S80.221A 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 S80.221A 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 S80.221A
S80.212 Abrasion, left knee
S80.212A …… initial encounter
S80.212D …… subsequent encounter
S80.212S …… sequela
S80.219 Abrasion, unspecified knee
S80.219A …… initial encounter
S80.219D …… subsequent encounter
S80.219S …… sequela
S80.22 Blister (nonthermal) of knee
S80.221 Blister (nonthermal), right knee
S80.221A …… initial encounter
S80.221D …… subsequent encounter
S80.221S …… sequela
S80.222 Blister (nonthermal), left knee
S80.222A …… initial encounter
S80.222D …… subsequent encounter
S80.222S …… sequela
S80.229 Blister (nonthermal), unspecified knee
S80.229A …… initial encounter
S80.229D …… subsequent encounter
S80.229S …… sequela

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