ICD-10-CM Code M00.1

Pneumococcal arthritis and polyarthritis

Version 2020 Non-Billable Code

Not Valid for Submission

M00.1 is a "header" nonspecific and non-billable code code, consider using a code with a higher level of specificity for a diagnosis of pneumococcal arthritis and polyarthritis. The code is NOT valid for the year 2020 for the submission of HIPAA-covered transactions.

ICD-10:M00.1
Short Description:Pneumococcal arthritis and polyarthritis
Long Description:Pneumococcal arthritis and polyarthritis

Consider the following ICD-10 codes with a higher level of specificity:

  • M00.10 - Pneumococcal arthritis, unspecified joint
  • M00.11 - Pneumococcal arthritis, shoulder
  • M00.111 - Pneumococcal arthritis, right shoulder
  • M00.112 - Pneumococcal arthritis, left shoulder
  • M00.119 - Pneumococcal arthritis, unspecified shoulder
  • M00.12 - Pneumococcal arthritis, elbow
  • M00.121 - Pneumococcal arthritis, right elbow
  • M00.122 - Pneumococcal arthritis, left elbow
  • M00.129 - Pneumococcal arthritis, unspecified elbow
  • M00.13 - Pneumococcal arthritis, wrist
  • M00.131 - Pneumococcal arthritis, right wrist
  • M00.132 - Pneumococcal arthritis, left wrist
  • M00.139 - Pneumococcal arthritis, unspecified wrist
  • M00.14 - Pneumococcal arthritis, hand
  • M00.141 - Pneumococcal arthritis, right hand
  • M00.142 - Pneumococcal arthritis, left hand
  • M00.149 - Pneumococcal arthritis, unspecified hand
  • M00.15 - Pneumococcal arthritis, hip
  • M00.151 - Pneumococcal arthritis, right hip
  • M00.152 - Pneumococcal arthritis, left hip
  • M00.159 - Pneumococcal arthritis, unspecified hip
  • M00.16 - Pneumococcal arthritis, knee
  • M00.161 - Pneumococcal arthritis, right knee
  • M00.162 - Pneumococcal arthritis, left knee
  • M00.169 - Pneumococcal arthritis, unspecified knee
  • M00.17 - Pneumococcal arthritis, ankle and foot
  • M00.171 - Pneumococcal arthritis, right ankle and foot
  • M00.172 - Pneumococcal arthritis, left ankle and foot
  • M00.179 - Pneumococcal arthritis, unspecified ankle and foot
  • M00.18 - Pneumococcal arthritis, vertebrae
  • M00.19 - Pneumococcal polyarthritis

Code Classification

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

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020

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

  • Intense pain in the joint
  • Joint redness and swelling
  • Chills and fever
  • Inability to move the area with the infected joint

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.


[Learn More]

Pneumococcal Infections

Pneumococci are a type of streptococcus bacteria. The bacteria spread through contact with people who are ill or by healthy people who carry the bacteria in the back of their nose. Pneumococcal infections can be mild or severe. The most common types of infections are

  • Ear infections
  • Sinus infections
  • Pneumonia
  • Sepsis
  • Meningitis

How the diagnosis is made depends upon where the infection is. Your doctor will do a physical exam and ask about your medical history. Possible tests may include blood, imaging, or lab tests. Treatment is with antibiotics. Vaccines can prevent pneumococcal infections. There are two vaccines. One is for infants and young children. The other is for people at high risk, including those who are over 65 years old, have chronic illnesses or weak immune systems, smoke, have asthma, or live in long-term care facilities.

Centers for Disease Control and Prevention


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