Right Leg Pain ICD-10-CM Codes | 2025

Explore ICD-10-CM codes for right leg pain, including billable options, specific causes, symptoms, and clinical guidance for accurate diagnosis and coding.

By Wynona Jugueta on Aug 8, 2025.

Fact Checked by Gale Alagos.

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What are Right Leg Pain ICD-10-CM Codes?

Right leg pain is a common complaint that can stem from musculoskeletal injuries, nerve disorders, or vascular conditions. To ensure accurate documentation and reimbursement, healthcare providers must use the appropriate ICD-10-CM codes. The diagnosis code selected depends on the specific location and underlying cause of the pain in the right leg or the related lower limb region.

Below are some of the most commonly used ICD-10 codes for documenting right leg pain, including descriptions and guidance on clinical use:

M79.601 – Pain in right leg, unspecified
This general ICD-10 code refers to right leg pain where no specific location or cause is identified. It's often used during early diagnosis stages or when documentation is limited.
M79.604 – Pain in right thigh
Use this code for soft tissue pain in the right thigh, commonly caused by muscle strain, neuritis, or vascular conditions.
M79.607 – Pain in right lower leg
This ICD-10-CM code applies when the pain in the right lower leg is isolated from the ankle and foot. Causes may include shin splints or soft tissue inflammation.
M79.611 – Pain in right ankle and joints of right foot
This code is ideal for patients with pain in the right lower limb, especially around joints affected by arthritis or injury.
M79.617 – Pain in right foot
Use this when documenting pain in the right foot due to plantar fasciitis, metatarsalgia, or nerve compression.
M79.622 – Pain in right toe(s)
This code covers pain in the right lower digits, including issues from gout to ingrown toenails.
M79.642 – Pain in right calf
For calf-specific pain, especially muscle-related, DVT, or lower limb circulation issues, this is the accurate diagnosis code.
M79.651 – Pain in right hip
For pain linked to the right hip joint, including soft tissue damage or osteoarthritis.
M79.661 – Pain in right lower leg, excluding ankle and foot
Use this when right leg pain excludes the foot or ankle, often related to overuse or compartment syndrome.
G57.12 – Meralgia paresthetica, right lower limb
A nerve-related diagnosis code, this refers to pain in right thigh caused by compression of the lateral femoral cutaneous nerve.

Which Right Leg Pain ICD-10-CM Codes are billable?

All codes listed above are ICD-10 billable codes and are recognized for documentation and Medicare reimbursement purposes. Each code helps pinpoint pain location and guides clinical decisions—whether the issue is in the foot, toe, ankle, or extends to the right lower limb.

Clinical information

Right leg pain can result from a broad range of conditions, including:

Soft tissue injuries (e.g., sprains, strains, tendonitis)
Nerve disorders (e.g., sciatica, neuritis, meralgia paresthetica)
Vascular conditions (e.g., DVT, PAD)
Joint issues (e.g., arthritis of the hip, knee, or ankle)
Infections and inflammation (e.g., cellulitis)

Symptoms often include pain in leg unspecified, pain in right lower limb, tingling, numbness, swelling, redness, and limited range of motion. Pain may also radiate to the foot, hip, or lower back, depending on the condition.

Diagnostic tools like X-rays, MRIs, and blood work help identify the cause. Depending on the diagnosis, treatment may involve:

Anti-inflammatory medications
Physical therapy
Immobilization or bracing
Pain management
Surgery
Specialist referral (e.g., to an orthopedic surgeon or neurologist)

While focusing on right leg, related codes may include:

M79.605 – Pain in left thigh
M79.606 – Pain in left lower leg
M79.672 – Pain in left toe(s)
M79.609 – Pain in unspecified leg
M79.673 – Pain in left foot
M79.646 – Pain in left calf
M79.669 – Pain in unspecified lower leg
M79.603 – Pain in arm, unspecified

These ICD-10-CM codes help capture comprehensive presentations, particularly when patients report pain in left or unspecified areas, in addition to right leg symptoms.

Synonyms include

Leg pain on the right side
Right-sided leg discomfort
Pain in the right lower limb
Right legache
Right leg soreness

Commonly asked questions

Yes, ICD-10-CM provides more specific codes when the underlying cause of right leg pain is identified, such as nerve compression, joint disorders, or vascular issues. In these cases, it's appropriate to code both the symptom (pain) and the confirmed diagnosis to reflect the full clinical picture.

Yes, some ICD-10 codes may be considered non-billable if they are too vague or lack required specificity, such as truncated codes without fourth or fifth characters. It's important to use the full, billable version of a code to ensure proper documentation and reimbursement.

Yes, if a patient presents with symptoms like numbness, swelling, or weakness alongside right leg pain, additional ICD-10-CM codes should be used to capture the full scope of the clinical presentation. This ensures accurate diagnosis, appropriate treatment planning, and optimized reimbursement.

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