Does M21.071 require prior authorization?

No, M21.071 does not require prior authorization (low confidence). No active coverage policies found for this code.

Verity

`M21.071` — Valgus deformity, not elsewhere classified, right ankle

ICD-10-CM

Prior Authorization

No Prior Auth Required

No active coverage policies found for this code (low confidence)

Documentation Required

A clinical history from the referral source indicating the need for testing must be available in the medical record and retrievable for review.
If an E/M service is billed as separate and identifiable, medical record must document medical necessity and the E/M CPT code must be billed with modifier 25.
Nerve conduction study reports must include numerical data (amplitude, latency, velocity) and F-wave descriptions must reference corresponding motor conduction data.
Blink reflex (CPT 95933) reports should include bilateral recordings with ipsilateral and contralateral stimulation and note presence or absence of R1 and R2 components.

Key Coverage Criteria

Electrodiagnostic testing (EMG and/or nerve conduction studies) is indicated for evaluation of suspected carpal tunnel syndrome.
EMG and/or nerve conduction studies are indicated for evaluation of suspected radiculopathy.
EMG and/or nerve conduction studies are indicated for evaluation of suspected mononeuropathy (single-nerve entrapment or injury).
EMG and/or nerve conduction studies are indicated for evaluation of suspected polyneuropathy or mononeuropathy multiplex.
EMG is indicated for evaluation of suspected myopathy.
EMG and nerve conduction studies are indicated for evaluation of suspected motor neuropathies (e.g., amyotrophic lateral sclerosis).

20 Active Policies

L34594 — Nerve Conduction Studies and Electromyography

J05

A57478 — Billing and Coding: Nerve Conduction Studies and Electromyography

J05

L39624 — Amniotic and Placental Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Wound

J05

A59434 — Billing and Coding: Amniotic and Placental-Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Wound

J05

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Neuromuscular junction studies (CPT 95937) reports must document stimulation rate and any significant incremental or decremental responses and may be reported separately from motor/sensory NCS of the same nerves.

When testing exceeds the reasonable maximum numbers listed in the guidance table, the provider must supply supplementary documentation justifying the additional tests; documentation must also justify testing an asymptomatic contralateral limb for normative values.

A57668 — Billing and Coding: Nerve Conduction Studies and Electromyography

J06

A58893 — Billing and Coding: Amniotic and Placental-Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Wound

J06

L35098 — Nerve Conduction Studies and Electromyography

J06

L39139 — Amniotic and Placental-Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Wound

J06

L39877 — Amniotic and Placental-Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Wound

J09

A59763 — Billing and Coding: Amniotic and Placental-Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Wound

J09

A59764 — Billing and Coding: Amniotic and Placental-Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Wound

J09

L39879 — Amniotic and Placental-Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Wound

J12

A59766 — Billing and Coding: Amniotic and Placental-Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Wound

J12

L39575 — Amniotic and Placental Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Wound

L34427 — Outpatient Occupational Therapy

L34428 — Outpatient Physical Therapy

L34560 — Home Health Occupational Therapy

L34564 — Home Health Physical Therapy

L35048 — Nerve Conduction Studies and Electromyography

L35897 — Nerve Conduction Studies and Electromyography

M21.071 — Valgus deformity, not elsewhere classified, right ankle