Left Leg Pain ICD-10-CM Codes

Read this short guide and learn about left leg pain ICD codes you can use!

By Liliana Braun on Feb 29, 2024.

Fact Checked by RJ Gumban.

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Left Leg Pain ICD-10-CM Codes

What left leg pain ICD codes can I use?

Any number of reasons can cause left leg pain. It can be caused by straining your muscles or by certain diseases or injuries. For the sake of this mini-guide, we will only discuss left leg pain ICD codes related to general pain in the left leg and the most common reason a person would feel pain in their left leg, which is straining their muscles.

Here are some of the left leg pain ICD codes you can use:

  1. M79.605 - Pain in left leg

This ICD-10 code is meant to be used on a patient confirmed to be feeling pain in their left leg. The pain can either be acute or chronic, and it can be caused by anything. The reason can be anything since this ICD-10 code is about pain in the left leg in general.

  1. M79.662 - Pain in left lower leg

This ICD-10 code is the same as Item 1, but the pain is in the left lower leg. While Item 1 is for pain in the left leg in general, this one is more specific.

  1. S86.912A - Strain of unspecified muscle(s) and tendon(s) at lower leg level, left leg, initial encounter

This ICD-10 code is meant to be used on a patient confirmed to have strained a muscle and tendon of their left leg, specifically at the lower leg level. The muscle and tendon are not specified, so they can be any muscle and tendon in the left leg. The initial encounter label means the patient is receiving active treatment for it.

  1. S86.912D - Strain of unspecified muscle(s) and tendon(s) at lower leg level, left leg, subsequent encounter

This is the same as Item 3, but there’s a subsequent encounter label, meaning the patient is in recovery and is still being given active treatment.

  1. S86.912S - Strain of unspecified muscle(s) and tendon(s) at lower leg level, left leg, sequela

This is the same as Item 3, but there’s a sequela label, which means the patient is dealing with the after-effects of the muscle and tendon strain. Given this, this ICD-10 code should be accompanied by two other ICD-10 codes, one of which should designate the sequela’s nature, while the other should describe the sequela (meaning its effects). In the context of this ICD-10 code, these problems were caused by the strain in the unspecified muscle and tendon at the lower leg level of their left leg.

Are these left leg pain ICD codes billable?

Yes. All of the aforementioned left leg pain-related ICD-10 codes are valid and billable.

Clinical information about left leg pain

When we speak of left leg pain, we’re referring to pain in that area. It doesn’t point to any specifics other than the general location of the pain.

Pain in this area can be caused by any number of things, the most common one being the overuse of the left leg to the point that it gets strained. Another reason could be an accident or even arthritis. To get to the bottom of what’s causing the pain, healthcare professionals must conduct comprehensive examinations of their patients. These examinations are composed of several tests, some of them being physical examinations and some of them being imaging tests. Non-imaging tests should confirm the possibility of certain problems, and imaging tests should confirm them. Treatment will depend on the cause.

Synonyms include

  • Pain in left lower limb
  • Pain of left lower limb co-occurrent and due to ischemia
  • Pain radiating to left leg
  • Pain in calf
  • Pain of left calf
  • Pain of left lower leg
  • Injury of muscle of left lower leg
  • Strain of muscle of left lower leg
  • Strain of muscle of lower leg
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Commonly asked questions

Are there any unbillable left leg pain ICD codes?

Yes, though, we recommend that you use billable ones. The ones that are unbillable are likely to be invalid and non-specific.

What is the most common cause of left leg pain?

Wear and tear over time and through overuse is the most common. Of course, there are other possible reasons, like injuries or specific conditions like arthritis, bone conditions, infections, nerve problems, muscle problems beyond simple strains, etc.

How is left leg pain treated?

That depends on the cause. Treatment can simply be rest or the use of hot/cold compress, and painkillers. If it’s caused by something complicated like injuries and diseases, then those should be addressed.

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