Diagnosis Code M21.27
Information for Medical Professionals
Information for Patients
Ankle Injuries and Disorders
Your ankle bone and the ends of your two lower leg bones make up the ankle joint. Your ligaments, which connect bones to one another, stabilize and support it. Your muscles and tendons move it.
The most common ankle problems are sprains and fractures. A sprain is an injury to the ligaments. It may take a few weeks to many months to heal completely. A fracture is a break in a bone. You can also injure other parts of the ankle such as tendons, which join muscles to bone, and cartilage, which cushions your joints. Ankle sprains and fractures are common sports injuries.
- Ankle arthroscopy (Medical Encyclopedia)
- Ankle fracture - aftercare (Medical Encyclopedia)
- Ankle pain (Medical Encyclopedia)
- Ankle replacement (Medical Encyclopedia)
- Ankle sprain - aftercare (Medical Encyclopedia)
- Foot, leg, and ankle swelling (Medical Encyclopedia)
Toe Injuries and Disorders
Fourteen of the 26 bones in your feet are in your toes. The toes, particularly your big toe, help you move and keep your balance. Playing sports, running, stubbing your toe, and dropping something on your foot can damage your toes. Wearing shoes that are too loose or too tight can also cause toe problems. Certain diseases, such as severe arthritis, can cause toe problems and pain. Gout often causes pain in the big toe.
Common toe problems include
- Corns and bunions
- Ingrown toenails
- Sprains and dislocations
Treatments for toe injuries and disorders vary. They might include shoe inserts or special shoes, padding, taping, medicines, rest, and in severe cases, surgery.
- Broken toe - self care (Medical Encyclopedia)
- Bunion removal (Medical Encyclopedia)
- Bunions (Medical Encyclopedia)
- Clubbing of the fingers or toes (Medical Encyclopedia)
- Hammer toe (Medical Encyclopedia)
- Hammer toe repair (Medical Encyclopedia)
- Hammer toe repair - discharge (Medical Encyclopedia)
- Polydactyly (Medical Encyclopedia)
General Equivalence Map Definitions
The ICD-10 and ICD-9 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.
Present on Admission
The Present on Admission (POA) indicator is used for diagnosis codes included in claims involving inpatient admissions to general acute care hospitals. POA indicators must be reported to CMS on each claim to facilitate the grouping of diagnoses codes into the proper Diagnostic Related Groups (DRG). CMS publishes a listing of specific diagnosis codes that are exempt from the POA reporting requirement.