ICD-9 Code 959.7

Knee, leg, ankle, and foot injury

Not Valid for Submission

959.7 is a legacy non-billable code used to specify a medical diagnosis of knee, leg, ankle, and foot injury. This code was replaced on September 30, 2015 by its ICD-10 equivalent.

ICD-9: 959.7
Short Description:Lower leg injury NOS
Long Description:Knee, leg, ankle, and foot injury

Convert 959.7 to ICD-10

The following crosswalk between ICD-9 to ICD-10 is based based on the General Equivalence Mappings (GEMS) information:

  • S89.80XA - Oth injuries of unspecified lower leg, init encntr
  • S89.90XA - Unspecified injury of unspecified lower leg, init encntr
  • S99.819A - Other specified injuries of unspecified ankle, init encntr
  • S99.919A - Unspecified injury of unspecified ankle, initial encounter

Code Classification

  • Injury and poisoning (800–999)
    • Certain traumatic complications and unspecified injuries (958-959)
      • 959 Injury, other and unspecified

Information for Medical Professionals


  • Acute injury of posterior cruciate ligament
  • Calf injury
  • Compartment syndrome of lower limb
  • Complete division, extensor tendon, foot
  • Complete division, flexor tendon, foot
  • Complete division, patellar tendon
  • Complete division, tendo calcaneus
  • Fishing hook in great toe
  • Fishing hook in heel
  • Foreign body in lower leg
  • Foreign body in lower limb
  • Foreign body left in ankle/foot
  • Foreign body left in knee
  • Foreign body of foot
  • Heel injury
  • Injury of ankle
  • Injury of anterior cruciate ligament
  • Injury of collateral ligament of knee
  • Injury of cruciate ligament of knee
  • Injury of fibula
  • Injury of foot
  • Injury of great toe
  • Injury of great toenail
  • Injury of knee
  • Injury of lateral collateral ligament of knee
  • Injury of little toe
  • Injury of lower extremity
  • Injury of lower leg
  • Injury of medial collateral ligament of knee
  • Injury of multiple muscles and tendons at lower leg level
  • Injury of muscle
  • Injury of muscle
  • Injury of muscle and tendon at ankle and foot level
  • Injury of muscle and tendon at lower leg level
  • Injury of muscle and tendon of long extensor muscle of toe at ankle and foot level
  • Injury of muscle and tendon of long flexor muscle of toe at ankle and foot level
  • Injury of patella
  • Injury of posterior cruciate ligament
  • Injury of posterolateral corner of knee
  • Injury of tibia
  • Injury of toe
  • Injury to multiple structures of knee
  • Massive multi tissue damage foot
  • Massive multi tissue damage lower leg
  • Multiple injuries of ankle and/or foot
  • Partial division, extensor tendon of foot
  • Partial division, flexor tendon of foot
  • Pellet wound of ankle
  • Pellet wound of calf
  • Pellet wound of dorsum of foot
  • Pellet wound of foot
  • Pellet wound of great toe
  • Pellet wound of heel
  • Pellet wound of knee
  • Pellet wound of lower leg
  • Pellet wound of lower limb
  • Pellet wound of shin
  • Pellet wound of sole of foot
  • Pellet wound of toe
  • Severe multi tissue damage foot
  • Severe multi tissue damage lower leg
  • Shin injury
  • Traumatic division of tendon of lower limb
  • Traumatic injury of popliteus muscle
  • Turf toe

Index to Diseases and Injuries

References found for the code 959.7 in the Index of Diseases and Injuries:

    • Injury 959.9
      • ankle and foot and knee and leg except thigh 959.7
      • foot and ankle and knee and leg except thigh 959.7
      • heel 959.7
      • knee and ankle and foot and leg except thigh 959.7
      • leg except thigh and ankle and foot and knee 959.7
        • upper or thigh 959.6
      • multiple sites not classifiable to the same four digit category in 959.0 959.7 959.8
        • internal 869.0
          • with open wound into cavity 869.1
      • nail
        • toe 959.7
      • phalanges
        • foot 959.7
      • popliteal space 959.7
      • subungual
        • toes 959.7
      • toe nail any 959.7

Information for Patients

Leg Injuries and Disorders

Your legs are made up of bones, blood vessels, muscles, and other connective tissue. They are important for motion and standing. Playing sports, running, falling, or having an accident can damage your legs. Common leg injuries include sprains and strains, joint dislocations, and fractures.

These injuries can affect the entire leg, or just the foot, ankle, knee, or hip. Certain diseases also lead to leg problems. For example, knee osteoarthritis, common in older people, can cause pain and limited motion. Problems in your veins in your legs can lead to varicose veins or deep vein thrombosis.

  • Blount's disease
  • Bowlegs
  • Common peroneal nerve dysfunction
  • Femoral nerve dysfunction
  • Femur fracture repair - discharge
  • Foot, leg, and ankle swelling
  • Iliotibial band syndrome -- aftercare
  • Ischemic ulcers -- self-care
  • Knock knees
  • Leg CT scan
  • Leg lengthening and shortening
  • Leg or foot amputation
  • Leg pain
  • Shin splints - self-care
  • Skeletal limb abnormalities
  • Tibial nerve dysfunction
  • Venous insufficiency
  • Venous ulcers -- self-care

[Read More]

ICD-9 Footnotes

General Equivalence Map Definitions
The ICD-9 and ICD-10 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

  • Approximate Flag - The approximate flag is on, indicating that the relationship between the code in the source system and the code in the target system is an approximate equivalent.
  • No Map Flag - The no map flag indicates that a code in the source system is not linked to any code in the target system.
  • Combination Flag - The combination flag indicates that more than one code in the target system is required to satisfy the full equivalent meaning of a code in the source system.

Index of Diseases and Injuries Definitions

  • And - The word "and" should be interpreted to mean either "and" or "or" when it appears in a title.
  • Code also note - A "code also" note instructs that two codes may be required to fully describe a condition, but this note does not provide sequencing direction.
  • Code first - Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists, there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation.
  • Type 1 Excludes Notes - A type 1 Excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • Type 2 Excludes Notes - A type 2 Excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
  • Includes Notes - This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
  • Inclusion terms - List of terms is included under some codes. These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
  • NEC "Not elsewhere classifiable" - This abbreviation in the Alphabetic Index represents "other specified". When a specific code is not available for a condition, the Alphabetic Index directs the coder to the "other specified” code in the Tabular List.
  • NOS "Not otherwise specified" - This abbreviation is the equivalent of unspecified.
  • See - The "see" instruction following a main term in the Alphabetic Index indicates that another term should be referenced. It is necessary to go to the main term referenced with the "see" note to locate the correct code.
  • See Also - A "see also" instruction following a main term in the Alphabetic Index instructs that there is another main term that may also be referenced that may provide additional Alphabetic Index entries that may be useful. It is not necessary to follow the "see also" note when the original main term provides the necessary code.
  • 7th Characters - Certain ICD-10-CM categories have applicable 7th characters. The applicable 7th character is required for all codes within the category, or as the notes in the Tabular List instruct. The 7th character must always be the 7th character in the data field. If a code that requires a 7th character is not 6 characters, a placeholder X must be used to fill in the empty characters.
  • With - The word "with" should be interpreted to mean "associated with" or "due to" when it appears in a code title, the Alphabetic Index, or an instructional note in the Tabular List. The word "with" in the Alphabetic Index is sequenced immediately following the main term, not in alphabetical order.