S80.00 is the authoritative medical code for Contusion of unspecified knee. This classification is used in medical billing and clinical recording to specify the clinical criteria for contusion of unspecified knee (ICD-10-CM S80.00), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: NO. This is a clinician non-billable / parent hierarchy grouping in the ICD-10-CM system.
Official Registry Overview & Definition
Contusion of unspecified knee is a non-billable ICD-10-CM category code S80.00. A more specific billable subcode must be selected for claims submission. 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 S80.00 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
Can S80.00 be billed directly?
No. S80.00 (Contusion of unspecified knee) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.
Does S80.00 require a 7th character?
Yes. The appropriate 7th character is to be added to each code from category S80.
Can S80.00 be reported alongside related conditions?
Per official ICD-10-CM Excludes2 instructions, S80.00 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 S80.00 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
- S80.00XA — 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
- S80.01XS — Contusion of right knee, sequela
View all 40 codes in the S80 family