Valid for Submission
M91.21 is a billable diagnosis code used to specify a medical diagnosis of coxa plana, right hip. The code M91.21 is valid during the fiscal year 2021 from October 01, 2020 through September 30, 2021 for the submission of HIPAA-covered transactions.
Diagnostic Related Groups - MS-DRG Mapping
Convert M91.21 to ICD-9 Code
The General Equivalency Mapping (GEM) crosswalk indicates an approximate mapping between the ICD-10 code M91.21 its ICD-9 equivalent. The approximate mapping means there is not an exact match between the ICD-10 code and the ICD-9 code and the mapped code is not a precise representation of the original code.
Information for Patients
Hip Injuries and Disorders
Your hip is the joint where your femur (thigh bone) meets your pelvis (hip bone). There are two main parts: a ball at the end of the femur, which fits in a socket in the pelvis. Your hip is known as a ball-and-socket joint. This is because you have a ball at the end of your femur, and it fits into a socket in your pelvis. This makes your hips very stable and allows for a wide range of motion. When they are healthy, it takes great force to hurt them. However, playing sports, running, overuse, or falling can sometimes lead to hip injuries such as
Certain diseases also lead to hip injuries or problems. Osteoarthritis can cause pain and limited motion. Osteoporosis of the hip causes weak bones that break easily. Both of these are common in older people.
Another problem is hip dysplasia, where the ball at the end of the femur is loose in the hip socket. It can cause hip dislocation. Babies who have hip dysplasia are usually born with it, but sometimes they develop it later.
Treatment for hip disorders may include rest, medicines, physical therapy, or surgery, including hip replacement.
- Developmental dysplasia of the hip (Medical Encyclopedia)
- Getting your home ready - knee or hip surgery (Medical Encyclopedia)
- Hip arthroscopy (Medical Encyclopedia)
- Hip flexor strain -- aftercare (Medical Encyclopedia)
- Hip fracture - discharge (Medical Encyclopedia)
- Hip fracture surgeries (Medical Encyclopedia)
- Hip joint injection (Medical Encyclopedia)
- Hip pain (Medical Encyclopedia)
- Legg-Calve-Perthes disease (Medical Encyclopedia)
- Slipped capital femoral epiphysis (Medical Encyclopedia)
- Trochanteric bursitis (Medical Encyclopedia)