M00.9
M00.9: Pyogenic arthritis, unspecified
Billable / specific codeICD-10-CM
M00.9 is a billable, specific ICD-10-CM code for pyogenic arthritis, unspecified. It is valid for submission on a claim.
Check M00.9 with the rest of the claim: free scrubberInclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Infective arthritis NOS
Risk adjustment
M00.9 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 92 Bone/Joint/Muscle/Severe Soft Tissue Infections/Necrosis0.479 RAF
Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score. Look up the whole chart to see which of its HCCs the hierarchy would zero.
Medicare coverage
M00.9 is named in 11 Medicare coverage policies: 4 listing it as supporting medical necessity, and 7 listing it as NOT covered. Which one applies depends on your Medicare contractor.
- A58865Billing and Coding: Amniotic and Placental-Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Woundnot covered
- A58883Billing and Coding: Amniotic and Placental-Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Woundnot covered
- A58893Billing and Coding: Amniotic and Placental-Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Woundnot covered
- A59374Billing and Coding: Amniotic and Placental-Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Woundnot covered
Alphabetic index entries that lead here
- Arthritis, arthritic›pyogenic or pyemic(any site except spine)
- Infection, infected, infective›acromioclavicular
- Infection, infected, infective›hip NEC(joint)
- Infection, infected, infective›joint NEC
- Infection, infected, infective›knee NEC(joint)
- Infection, infected, infective›metatarsophalangeal
- Infection, infected, infective›shoulder NEC(joint)
- Abscess›knee›joint
- Disease, diseased›hip›suppurative
- Infection, infected, infective›knee NEC›joint
Code history
Unchanged in every release from FY2024 to FY2027.