ICD-10-CM 2027
ICD-10 code for staphylococcal arthritis
Staphylococcal arthritis, unspecified joint
From the official ICD-10-CM alphabetic index entry “Arthritis, arthritic (acute) (chronic) (nonpyogenic) (subacute) › staphylococcal”. Page updated September 29, 2026.
About coding staphylococcal arthritis
The ICD-10-CM code for staphylococcal arthritis is M00.00 (Staphylococcal arthritis, unspecified joint). The official index lists 9 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on M00.00.
Within M00.0, choose M00.00 (arthritis, unspecified joint) only when documentation doesn't support a more specific option: arthritis, shoulder (M00.01), arthritis, elbow (M00.02), arthritis, wrist (M00.03), arthritis, hand (M00.04), arthritis, hip (M00.05), arthritis, knee (M00.06), arthritis, ankle and foot (M00.07), arthritis, vertebrae (M00.08) and 1 more.
As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.
In MS-DRG v44.0, it is part of the grouping logic for DRG 548 (Septic Arthritis with MCC, relative weight 1.9519), DRG 549 (Septic Arthritis with CC, relative weight 1.1435) and DRG 550 (Septic Arthritis without CC/MCC, relative weight 0.8591), in MDC 08 (Diseases and Disorders of the Musculoskeletal System and Connective Tissue), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific staphylococcal arthritis codes (official index)
- ankle M00.07 — Staphylococcal arthritis, ankle and foot
- elbow M00.02 — Staphylococcal arthritis, elbow
- foot joint
- hand joint M00.04 — Staphylococcal arthritis, hand
- hip M00.05 — Staphylococcal arthritis, hip
- knee M00.06 — Staphylococcal arthritis, knee
- multiple site M00.09 — Staphylococcal polyarthritis
- shoulder M00.01 — Staphylococcal arthritis, shoulder
- vertebra M00.08 — Staphylococcal arthritis, vertebrae
- wrist M00.03 — Staphylococcal arthritis, wrist
Common questions about staphylococcal arthritis ICD-10 codes
What is the ICD-10 code for staphylococcal arthritis?
- M00.00 — Staphylococcal arthritis, unspecified joint. More specific codes apply when the documentation supports them: M00.07, M00.02, M00.04, M00.05 and others below.
What is the ICD-10 code for ankle staphylococcal arthritis?
- M00.07 — Staphylococcal arthritis, ankle and foot (header code; choose a more specific subcode).
What is the ICD-10 code for elbow staphylococcal arthritis?
- M00.02 — Staphylococcal arthritis, elbow (header code; choose a more specific subcode).
What is the ICD-10 code for hand joint staphylococcal arthritis?
- M00.04 — Staphylococcal arthritis, hand (header code; choose a more specific subcode).
What is the ICD-10 code for hip staphylococcal arthritis?
- M00.05 — Staphylococcal arthritis, hip (header code; choose a more specific subcode).
What is the ICD-10 code for knee staphylococcal arthritis?
- M00.06 — Staphylococcal arthritis, knee (header code; choose a more specific subcode).
What is the ICD-10 code for multiple site staphylococcal arthritis?
- M00.09 — Staphylococcal polyarthritis.
Is M00.00 billable?
- Yes. M00.00 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can M00.00 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict M00.00 as a principal diagnosis.
Is M00.00 a CC or MCC?
- M00.00 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.