2021 ICD-10-CM Code M21.371
Foot drop, right foot
Valid for Submission
M21.371 is a billable diagnosis code used to specify a medical diagnosis of foot drop, right foot. The code M21.371 is valid during the fiscal year 2021 from October 01, 2020 through September 30, 2021 for the submission of HIPAA-covered transactions.
The ICD-10-CM code M21.371 might also be used to specify conditions or terms like bilateral foot drop, foot-drop, foot-drop or right foot drop.
Code Classification
Approximate Synonyms
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Bilateral foot drop
- Foot-drop
- Foot-drop
- Right foot drop
Diagnostic Related Groups - MS-DRG Mapping
The ICD-10 code M21.371 is grouped in the following groups for version MS-DRG V38.0 What are Diagnostic Related Groups?
The Diagnostic Related Groups (DRGs) are a patient classification scheme which provides a means of relating the type of patients a hospital treats. The DRGs divides all possible principal diagnoses into mutually exclusive principal diagnosis areas referred to as Major Diagnostic Categories (MDC). applicable from 10/01/2020 through 09/30/2021.
- 564 - OTHER MUSCULOSKELETAL SYSTEM AND CONNECTIVE TISSUE DIAGNOSES WITH MCC - Relative Weight: 1.5138
- 565 - OTHER MUSCULOSKELETAL SYSTEM AND CONNECTIVE TISSUE DIAGNOSES WITH CC - Relative Weight: 1.0063
- 566 - OTHER MUSCULOSKELETAL SYSTEM AND CONNECTIVE TISSUE DIAGNOSES WITHOUT CC/MCC - Relative Weight: 0.7515
Convert M21.371 to ICD-9 Code
The General Equivalency Mapping (GEM) crosswalk indicates an approximate mapping between the ICD-10 code M21.371 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.
- 736.79 - Acq ankle-foot def NEC (Approximate Flag)
Information for Patients
Foot Injuries and Disorders
Each of your feet has 26 bones, 33 joints, and more than 100 tendons, muscles, and ligaments. No wonder a lot of things can go wrong. Here are a few common problems:
- Bunions - hard, painful bumps on the big toe joint
- Corns and calluses - thickened skin from friction or pressure
- Plantar warts - warts on the soles of your feet
- Fallen arches - also called flat feet
Ill-fitting shoes often cause these problems. Aging and being overweight also increase your chances of having foot problems.
- Claw foot (Medical Encyclopedia)
- Clubfoot (Medical Encyclopedia)
- Common peroneal nerve dysfunction (Medical Encyclopedia)
- Extremity x-ray (Medical Encyclopedia)
- Flat feet (Medical Encyclopedia)
- Foot pain (Medical Encyclopedia)
- Foot sprain - aftercare (Medical Encyclopedia)
- Foot, leg, and ankle swelling (Medical Encyclopedia)
- Hand or foot spasms (Medical Encyclopedia)
- High arch (Medical Encyclopedia)
- Metatarsal fracture (acute) - aftercare (Medical Encyclopedia)
- Metatarsal stress fractures - aftercare (Medical Encyclopedia)
- Metatarsus adductus (Medical Encyclopedia)
- Morton neuroma (Medical Encyclopedia)
[Learn More]
Code History
- FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
- FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
- FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
- FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
- FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
- FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016 (First year ICD-10-CM implemented into the HIPAA code set)