2022 ICD-10-CM Code M00.80
Arthritis due to other bacteria, unspecified joint

Version 2022
ICD-10:M00.80
Short Description:Arthritis due to other bacteria, unspecified joint
Long Description:Arthritis due to other bacteria, unspecified joint
Status: Valid for Submission

Code Classification

  • Diseases of the musculoskeletal system and connective tissue (M00–M99)
    • Infectious arthropathies (M00-M02)
      • Pyogenic arthritis (M00)

M00.80 is a billable diagnosis code used to specify a medical diagnosis of arthritis due to other bacteria, unspecified joint. The code M00.80 is valid during the fiscal year 2022 from October 01, 2021 through September 30, 2022 for the submission of HIPAA-covered transactions.

The ICD-10-CM code M00.80 might also be used to specify conditions or terms like acute bacterial arthritis, acute infective arthritis, arthritis caused by mycobacterium leprae, arthritis caused by spirochaetale infection, arthritis due to e. coli , arthritis due to pseudomonas, etc.

Unspecified diagnosis codes like M00.80 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.

Entries in the Index to Diseases and Injuries with references to M00.80

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code M00.80 are found in the index:

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

Convert M00.80 to ICD-9 Code

Information for Patients


Infectious Arthritis

Most kinds of arthritis cause pain and swelling in your joints. Joints are places where two bones meet, such as your elbow or knee. Infectious arthritis is an infection in the joint. The infection comes from a bacterial, viral, or fungal infection that spreads from another part of the body. Symptoms of infectious arthritis include

One type of infectious arthritis is reactive arthritis. The reaction is to an infection somewhere else in your body. The joint is usually the knee, ankle, or toe. Sometimes, reactive arthritis is set off by an infection in the bladder, or in the urethra, which carries urine out of the body. In women, an infection in the vagina can cause the reaction. For both men and women, it can start with bacteria passed on during sex. Another form of reactive arthritis starts with eating food or handling something that has bacteria on it.

To diagnose infectious arthritis, your health care provider may do tests of your blood, urine, and joint fluid. Treatment includes medicines and sometimes surgery.


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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)