S80.222A is the authoritative medical code for Blister nonthermal, left knee, initial encounter. This classification is used in medical billing and clinical recording to specify the clinical criteria for blister nonthermal, left knee, initial encounter (ICD-10-CM S80.222A), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Blister nonthermal, left knee, initial encounter is a billable ICD-10-CM diagnosis code S80.222A. Excludes2 (not included here): superficial injury of ankle and foot S90.-; 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. 7th character: The appropriate 7th character is to be added to each code from category S80.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for S80.222A in the official ICD-10-CM tabular list.
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- superficial injury of ankle and foot S90.-
- 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
Frequently Asked Questions (FAQ) & Clinical Guidance
Does S80.222A require a 7th character?
Yes. The appropriate 7th character is to be added to each code from category S80.
Can S80.222A be reported alongside related conditions?
Per official ICD-10-CM Excludes2 instructions, S80.222A and the following are not considered part of each other and may both be reported when both conditions are present: superficial injury of ankle and foot (S90.-); burns and corrosions (T20-T32); frostbite (T33-T34); injuries of ankle and foot, except fracture of ankle and malleolus (S90-S99).
Nearest Codes in This Family
Official ICD-10-CM classifications closest to S80.222A in its code family, with their registry titles.
- S80 — Superficial injury of knee and lower leg
- S80-S89 — Injuries to the knee and lower leg (S80-S89)
- S80.0 — Contusion of knee
- S80.00 — Contusion of unspecified knee
- S80.00XA — Contusion of unspecified knee, initial encounter
- S80.00XD — Contusion of unspecified knee, subsequent encounter
- S80.00XS — Contusion of unspecified knee, sequela
- S80.01 — Contusion of right knee
- S80.01XA — Contusion of right knee, initial encounter
- S80.01XD — Contusion of right knee, subsequent encounter
View all 40 codes in the S80 family