ICD-10 Diagnosis Code M21.95

Unspecified acquired deformity of thigh

Diagnosis Code M21.95

ICD-10: M21.95
Short Description: Unspecified acquired deformity of thigh
Long Description: Unspecified acquired deformity of thigh
This is the 2019 version of the ICD-10-CM diagnosis code M21.95

Not Valid for Submission
The code M21.95 is a "header" and not valid for submission for HIPAA-covered transactions.

Code Classification
  • Diseases of the musculoskeletal system and connective tissue (M00–M99)
    • Other joint disorders (M20-M25)
      • Other acquired deformities of limbs (M21)

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 disease (Medical Encyclopedia)
  • Bowlegs (Medical Encyclopedia)
  • Common peroneal nerve dysfunction (Medical Encyclopedia)
  • Femoral nerve dysfunction (Medical Encyclopedia)
  • Femur fracture repair - discharge (Medical Encyclopedia)
  • Foot, leg, and ankle swelling (Medical Encyclopedia)
  • Iliotibial band syndrome -- aftercare (Medical Encyclopedia)
  • Ischemic ulcers -- self-care (Medical Encyclopedia)
  • Knock knees (Medical Encyclopedia)
  • Leg pain (Medical Encyclopedia)
  • Shin splints - self-care (Medical Encyclopedia)
  • Tibial nerve dysfunction (Medical Encyclopedia)
  • Venous insufficiency (Medical Encyclopedia)

[Read More]

ICD-10 Footnotes

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.

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