S81.012A is the authoritative medical code for Laceration without foreign body, left knee, initial encounter. This classification is used in medical billing and clinical recording to specify the clinical criteria for laceration without foreign body, left knee, initial encounter (ICD-10-CM S81.012A), 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
Laceration without foreign body, left knee, initial encounter is a billable ICD-10-CM diagnosis code S81.012A. Excludes1 (not coded here): open fracture of knee and lower leg S82.-; traumatic amputation of lower leg S88.-. Excludes2 (not included here): open wound of ankle and foot S91.-; 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. Code also: any associated wound infection. 7th character: The appropriate 7th character is to be added to each code from category S81.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for S81.012A in the official ICD-10-CM tabular list.
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- open fracture of knee and lower leg S82.-
- traumatic amputation of lower leg S88.-
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- open wound of ankle and foot S91.-
- 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
Code Also
Additional codes that may be required to fully describe the encounter.
- any associated wound infection
Frequently Asked Questions (FAQ) & Clinical Guidance
Does S81.012A require a 7th character?
Yes. The appropriate 7th character is to be added to each code from category S81.
What can't be coded together with S81.012A?
Per Excludes1 instructions, S81.012A must not be reported with: open fracture of knee and lower leg (S82.-); traumatic amputation of lower leg (S88.-).
Can S81.012A be reported alongside related conditions?
Per Excludes2 instructions, S81.012A and the following may both be reported when both are present: open wound of ankle and foot (S91.-); burns and corrosions (T20-T32); frostbite (T33-T34); injuries of ankle and foot, except fracture of ankle and malleolus (S90-S99).
Codes in This Family (40)
Official ICD-10-CM classifications in the same code family as S81.012A, with their registry titles.
- S81 — Open wound of knee and lower leg
- S81.0 — Open wound of knee
- S81.00 — Unspecified open wound of knee
- S81.001 — Unspecified open wound, right knee
- S81.001A — Unspecified open wound, right knee, initial encounter
- S81.001D — Unspecified open wound, right knee, subsequent encounter
- S81.001S — Unspecified open wound, right knee, sequela
- S81.002 — Unspecified open wound, left knee
- S81.002A — Unspecified open wound, left knee, initial encounter
- S81.002D — Unspecified open wound, left knee, subsequent encounter
- S81.002S — Unspecified open wound, left knee, sequela
- S81.009 — Unspecified open wound, unspecified knee
- S81.009A — Unspecified open wound, unspecified knee, initial encounter
- S81.009D — Unspecified open wound, unspecified knee, subsequent encounter
- S81.009S — Unspecified open wound, unspecified knee, sequela
- S81.01 — Laceration without foreign body of knee
- S81.011 — Laceration without foreign body, right knee
- S81.011A — Laceration without foreign body, right knee, initial encounter
- S81.011D — Laceration without foreign body, right knee, subsequent encounter
- S81.011S — Laceration without foreign body, right knee, sequela
- S81.012 — Laceration without foreign body, left knee
- S81.012D — Laceration without foreign body, left knee, subsequent encounter
- S81.012S — Laceration without foreign body, left knee, sequela
- S81.019 — Laceration without foreign body, unspecified knee
- S81.019A — Laceration without foreign body, unspecified knee, initial encounter
- S81.019D — Laceration without foreign body, unspecified knee, subsequent encounter
- S81.019S — Laceration without foreign body, unspecified knee, sequela
- S81.02 — Laceration with foreign body of knee
- S81.021 — Laceration with foreign body, right knee
- S81.021A — Laceration with foreign body, right knee, initial encounter
- S81.021D — Laceration with foreign body, right knee, subsequent encounter
- S81.021S — Laceration with foreign body, right knee, sequela
- S81.022 — Laceration with foreign body, left knee
- S81.022A — Laceration with foreign body, left knee, initial encounter
- S81.022D — Laceration with foreign body, left knee, subsequent encounter
- S81.022S — Laceration with foreign body, left knee, sequela
- S81.029 — Laceration with foreign body, unspecified knee
- S81.029A — Laceration with foreign body, unspecified knee, initial encounter
- S81.029D — Laceration with foreign body, unspecified knee, subsequent encounter
- S81.029S — Laceration with foreign body, unspecified knee, sequela
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures:
ICD Code S79.012A
Salter-Harris Type I physeal fracture of upper end of left femur, initial encounter for closed fracture
ICD Code S82.012A
Displaced osteochondral fracture of left patella, initial encounter for closed fracture