BKA ICD-10-CM Codes

BKA ICD-10-CM Codes

Learn about valid BKA ICD-10 codes related to Below-Knee Amputation (BKA) and when to use them.

By Olivia Sayson on Jul 16, 2025.

Fact Checked by Gale Alagos.

Use Code

What ICD codes are used for BKA?

While there are no codes with below-knee amputation (BKA) in their names, you can use specific BKA ICD-10 codes for BKA-related cases. Below are the relevant codes:

  • Z89.511 – Acquired absence of right leg below knee: This code is used for patients who have undergone an amputation of the right leg below the knee. ​
  • Z89.512 – Acquired absence of left leg below knee: Applicable for patients with an amputation of the left leg below the knee. ​
  • Z89.519 – Acquired absence of unspecified leg below knee: This code is used when the specific leg (right or left) is not documented. While using specific codes (Z89.511 or Z89.512) is preferable, Z89.519 serves as an alternative when laterality is unknown.

Are these BKA ICD codes billable?

Yes. All three codes listed above are valid and billable.

Clinical information about BKA:

  • BKA, or Below-Knee Amputation, also known as transtibial amputation, is a surgical procedure performed to save the life of patients suffering from severe trauma, disease, or defects in their lower extremities.
  •  It involves the complete removal of everything below the knee that is affected. 
  • This procedure is necessary when poor circulation threatens the limb, potentially leading to non-healing ulcers and life-threatening infections, especially in the bones.

Synonyms include:

  • Amputated at knee
  • Amputated below knee
  • Amputated right lower limb
  • Amputated right lower limb below knee
  • Amputated left lower limb
  • Amputated left lower limb below knee
  • History of amputation of left and right leg through tibia and fibula
  • History of bilateral lower limb amputation
  • History of amputation of left leg through tibia and fibula
  • History of amputation of right leg through tibia and fibula

Popular search terms for BKA ICD codes

Several popular search terms are frequently used when researching or documenting cases related to below-knee amputation (BKA). These terms help healthcare professionals and coders find relevant ICD-10 codes and clarify documentation.

Commonly used search terms include:

  • Lower leg: Used to specify the general location of the amputation.
  • Limb post-traumatic loss: Refers to amputations caused by injury or trauma.
  • Congenital absence: Indicates a condition where the lower limb is missing from birth.
  • Amputation status postprocedural loss: Used to describe a patient’s current health status after surgical removal of the limb.
  • Health status: Often used when assessing or coding for long-term outcomes and disability related to limb absence.

Related ICDs

EHR and practice management software

Get started for free

*No credit card required

Free

$0/usd

Unlimited clients

Telehealth

1GB of storage

Client portal text

Automated billing and online payments