ICD-10-CM category
M00: Pyogenic arthritis
Codes under M00 (Pyogenic arthritis). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| M00.0 | Staphylococcal arthritis and polyarthritis | — |
| M00.0 | Staphylococcal arthritis and polyarthritis | — |
| M00.00 | Staphylococcal arthritis, unspecified joint | ✓ |
| M00.00 | Staphylococcal arthritis, unspecified joint | ✓ |
| M00.01 | Staphylococcal arthritis, shoulder | — |
| M00.01 | Staphylococcal arthritis, shoulder | — |
| M00.1 | Pneumococcal arthritis and polyarthritis | — |
| M00.1 | Pneumococcal arthritis and polyarthritis | — |
| M00.02 | Staphylococcal arthritis, elbow | — |
| M00.02 | Staphylococcal arthritis, elbow | — |
| M00.2 | Other streptococcal arthritis and polyarthritis | — |
| M00.2 | Other streptococcal arthritis and polyarthritis | — |
| M00.03 | Staphylococcal arthritis, wrist | — |
| M00.03 | Staphylococcal arthritis, wrist | — |
| M00.04 | Staphylococcal arthritis, hand | — |
| M00.04 | Staphylococcal arthritis, hand | — |
| M00.05 | Staphylococcal arthritis, hip | — |
| M00.05 | Staphylococcal arthritis, hip | — |
| M00.06 | Staphylococcal arthritis, knee | — |
| M00.06 | Staphylococcal arthritis, knee | — |
| M00.07 | Staphylococcal arthritis, ankle and foot | — |
| M00.07 | Staphylococcal arthritis, ankle and foot | — |
| M00.08 | Staphylococcal arthritis, vertebrae | ✓ |
| M00.08 | Staphylococcal arthritis, vertebrae | ✓ |
| M00.8 | Arthritis and polyarthritis due to other bacteria | — |
| M00.8 | Arthritis and polyarthritis due to other bacteria | — |
| M00.09 | Staphylococcal polyarthritis | ✓ |
| M00.09 | Staphylococcal polyarthritis | ✓ |
| M00.9 | Pyogenic arthritis, unspecified | ✓ |
| M00.9 | Pyogenic arthritis, unspecified | ✓ |
| M00.10 | Pneumococcal arthritis, unspecified joint | ✓ |
| M00.10 | Pneumococcal arthritis, unspecified joint | ✓ |
| M00.011 | Staphylococcal arthritis, right shoulder | ✓ |
| M00.011 | Staphylococcal arthritis, right shoulder | ✓ |
| M00.11 | Pneumococcal arthritis, shoulder | — |
| M00.11 | Pneumococcal arthritis, shoulder | — |
| M00.012 | Staphylococcal arthritis, left shoulder | ✓ |
| M00.012 | Staphylococcal arthritis, left shoulder | ✓ |
| M00.12 | Pneumococcal arthritis, elbow | — |
| M00.12 | Pneumococcal arthritis, elbow | — |
| M00.13 | Pneumococcal arthritis, wrist | — |
| M00.13 | Pneumococcal arthritis, wrist | — |
| M00.14 | Pneumococcal arthritis, hand | — |
| M00.14 | Pneumococcal arthritis, hand | — |
| M00.15 | Pneumococcal arthritis, hip | — |
| M00.15 | Pneumococcal arthritis, hip | — |
| M00.16 | Pneumococcal arthritis, knee | — |
| M00.16 | Pneumococcal arthritis, knee | — |
| M00.17 | Pneumococcal arthritis, ankle and foot | — |
| M00.17 | Pneumococcal arthritis, ankle and foot | — |
| M00.18 | Pneumococcal arthritis, vertebrae | ✓ |
| M00.18 | Pneumococcal arthritis, vertebrae | ✓ |
| M00.019 | Staphylococcal arthritis, unspecified shoulder | ✓ |
| M00.019 | Staphylococcal arthritis, unspecified shoulder | ✓ |
| M00.19 | Pneumococcal polyarthritis | ✓ |
| M00.19 | Pneumococcal polyarthritis | ✓ |
| M00.20 | Other streptococcal arthritis, unspecified joint | ✓ |
| M00.20 | Other streptococcal arthritis, unspecified joint | ✓ |
| M00.021 | Staphylococcal arthritis, right elbow | ✓ |
| M00.021 | Staphylococcal arthritis, right elbow | ✓ |
| M00.21 | Other streptococcal arthritis, shoulder | — |
| M00.21 | Other streptococcal arthritis, shoulder | — |
| M00.022 | Staphylococcal arthritis, left elbow | ✓ |
| M00.022 | Staphylococcal arthritis, left elbow | ✓ |
| M00.22 | Other streptococcal arthritis, elbow | — |
| M00.22 | Other streptococcal arthritis, elbow | — |
| M00.23 | Other streptococcal arthritis, wrist | — |
| M00.23 | Other streptococcal arthritis, wrist | — |
| M00.24 | Other streptococcal arthritis, hand | — |
| M00.24 | Other streptococcal arthritis, hand | — |
| M00.25 | Other streptococcal arthritis, hip | — |
| M00.25 | Other streptococcal arthritis, hip | — |
| M00.26 | Other streptococcal arthritis, knee | — |
| M00.26 | Other streptococcal arthritis, knee | — |
| M00.27 | Other streptococcal arthritis, ankle and foot | — |
| M00.27 | Other streptococcal arthritis, ankle and foot | — |
| M00.28 | Other streptococcal arthritis, vertebrae | ✓ |
| M00.28 | Other streptococcal arthritis, vertebrae | ✓ |
| M00.029 | Staphylococcal arthritis, unspecified elbow | ✓ |
| M00.029 | Staphylococcal arthritis, unspecified elbow | ✓ |
| M00.29 | Other streptococcal polyarthritis | ✓ |
| M00.29 | Other streptococcal polyarthritis | ✓ |
| M00.031 | Staphylococcal arthritis, right wrist | ✓ |
| M00.031 | Staphylococcal arthritis, right wrist | ✓ |
| M00.032 | Staphylococcal arthritis, left wrist | ✓ |
| M00.032 | Staphylococcal arthritis, left wrist | ✓ |
| M00.039 | Staphylococcal arthritis, unspecified wrist | ✓ |
| M00.039 | Staphylococcal arthritis, unspecified wrist | ✓ |
| M00.041 | Staphylococcal arthritis, right hand | ✓ |
| M00.041 | Staphylococcal arthritis, right hand | ✓ |
| M00.042 | Staphylococcal arthritis, left hand | ✓ |
| M00.042 | Staphylococcal arthritis, left hand | ✓ |
| M00.049 | Staphylococcal arthritis, unspecified hand | ✓ |
| M00.049 | Staphylococcal arthritis, unspecified hand | ✓ |
| M00.051 | Staphylococcal arthritis, right hip | ✓ |
| M00.051 | Staphylococcal arthritis, right hip | ✓ |
| M00.052 | Staphylococcal arthritis, left hip | ✓ |
| M00.052 | Staphylococcal arthritis, left hip | ✓ |
| M00.059 | Staphylococcal arthritis, unspecified hip | ✓ |
| M00.059 | Staphylococcal arthritis, unspecified hip | ✓ |
| M00.061 | Staphylococcal arthritis, right knee | ✓ |
| M00.061 | Staphylococcal arthritis, right knee | ✓ |
| M00.062 | Staphylococcal arthritis, left knee | ✓ |
| M00.062 | Staphylococcal arthritis, left knee | ✓ |
| M00.069 | Staphylococcal arthritis, unspecified knee | ✓ |
| M00.069 | Staphylococcal arthritis, unspecified knee | ✓ |
| M00.071 | Staphylococcal arthritis, right ankle and foot | ✓ |
| M00.071 | Staphylococcal arthritis, right ankle and foot | ✓ |
| M00.072 | Staphylococcal arthritis, left ankle and foot | ✓ |
| M00.072 | Staphylococcal arthritis, left ankle and foot | ✓ |
| M00.079 | Staphylococcal arthritis, unspecified ankle and foot | ✓ |
| M00.079 | Staphylococcal arthritis, unspecified ankle and foot | ✓ |
| M00.80 | Arthritis due to other bacteria, unspecified joint | ✓ |
| M00.80 | Arthritis due to other bacteria, unspecified joint | ✓ |
| M00.81 | Arthritis due to other bacteria, shoulder | — |
| M00.81 | Arthritis due to other bacteria, shoulder | — |
| M00.82 | Arthritis due to other bacteria, elbow | — |
| M00.82 | Arthritis due to other bacteria, elbow | — |
| M00.83 | Arthritis due to other bacteria, wrist | — |
| M00.83 | Arthritis due to other bacteria, wrist | — |
| M00.84 | Arthritis due to other bacteria, hand | — |
| M00.84 | Arthritis due to other bacteria, hand | — |
| M00.85 | Arthritis due to other bacteria, hip | — |
| M00.85 | Arthritis due to other bacteria, hip | — |
| M00.86 | Arthritis due to other bacteria, knee | — |
| M00.86 | Arthritis due to other bacteria, knee | — |
| M00.87 | Arthritis due to other bacteria, ankle and foot | — |
| M00.87 | Arthritis due to other bacteria, ankle and foot | — |
| M00.88 | Arthritis due to other bacteria, vertebrae | ✓ |
| M00.88 | Arthritis due to other bacteria, vertebrae | ✓ |
| M00.89 | Polyarthritis due to other bacteria | ✓ |
| M00.89 | Polyarthritis due to other bacteria | ✓ |
| M00.111 | Pneumococcal arthritis, right shoulder | ✓ |
| M00.111 | Pneumococcal arthritis, right shoulder | ✓ |
| M00.112 | Pneumococcal arthritis, left shoulder | ✓ |
| M00.112 | Pneumococcal arthritis, left shoulder | ✓ |
| M00.119 | Pneumococcal arthritis, unspecified shoulder | ✓ |
| M00.119 | Pneumococcal arthritis, unspecified shoulder | ✓ |
| M00.121 | Pneumococcal arthritis, right elbow | ✓ |
| M00.121 | Pneumococcal arthritis, right elbow | ✓ |
| M00.122 | Pneumococcal arthritis, left elbow | ✓ |
| M00.122 | Pneumococcal arthritis, left elbow | ✓ |
| M00.129 | Pneumococcal arthritis, unspecified elbow | ✓ |
| M00.129 | Pneumococcal arthritis, unspecified elbow | ✓ |
| M00.131 | Pneumococcal arthritis, right wrist | ✓ |
| M00.131 | Pneumococcal arthritis, right wrist | ✓ |
| M00.132 | Pneumococcal arthritis, left wrist | ✓ |
| M00.132 | Pneumococcal arthritis, left wrist | ✓ |
| M00.139 | Pneumococcal arthritis, unspecified wrist | ✓ |
| M00.139 | Pneumococcal arthritis, unspecified wrist | ✓ |
| M00.141 | Pneumococcal arthritis, right hand | ✓ |
| M00.141 | Pneumococcal arthritis, right hand | ✓ |
| M00.142 | Pneumococcal arthritis, left hand | ✓ |
| M00.142 | Pneumococcal arthritis, left hand | ✓ |
| M00.149 | Pneumococcal arthritis, unspecified hand | ✓ |
| M00.149 | Pneumococcal arthritis, unspecified hand | ✓ |
| M00.151 | Pneumococcal arthritis, right hip | ✓ |
| M00.151 | Pneumococcal arthritis, right hip | ✓ |
| M00.152 | Pneumococcal arthritis, left hip | ✓ |
| M00.152 | Pneumococcal arthritis, left hip | ✓ |
| M00.159 | Pneumococcal arthritis, unspecified hip | ✓ |
| M00.159 | Pneumococcal arthritis, unspecified hip | ✓ |
| M00.161 | Pneumococcal arthritis, right knee | ✓ |
| M00.161 | Pneumococcal arthritis, right knee | ✓ |
| M00.162 | Pneumococcal arthritis, left knee | ✓ |
| M00.162 | Pneumococcal arthritis, left knee | ✓ |
| M00.169 | Pneumococcal arthritis, unspecified knee | ✓ |
| M00.169 | Pneumococcal arthritis, unspecified knee | ✓ |
| M00.171 | Pneumococcal arthritis, right ankle and foot | ✓ |
| M00.171 | Pneumococcal arthritis, right ankle and foot | ✓ |
| M00.172 | Pneumococcal arthritis, left ankle and foot | ✓ |
| M00.172 | Pneumococcal arthritis, left ankle and foot | ✓ |
| M00.179 | Pneumococcal arthritis, unspecified ankle and foot | ✓ |
| M00.179 | Pneumococcal arthritis, unspecified ankle and foot | ✓ |
| M00.211 | Other streptococcal arthritis, right shoulder | ✓ |
| M00.211 | Other streptococcal arthritis, right shoulder | ✓ |
| M00.212 | Other streptococcal arthritis, left shoulder | ✓ |
| M00.212 | Other streptococcal arthritis, left shoulder | ✓ |
| M00.219 | Other streptococcal arthritis, unspecified shoulder | ✓ |
| M00.219 | Other streptococcal arthritis, unspecified shoulder | ✓ |
| M00.221 | Other streptococcal arthritis, right elbow | ✓ |
| M00.221 | Other streptococcal arthritis, right elbow | ✓ |
| M00.222 | Other streptococcal arthritis, left elbow | ✓ |
| M00.222 | Other streptococcal arthritis, left elbow | ✓ |
| M00.229 | Other streptococcal arthritis, unspecified elbow | ✓ |
| M00.229 | Other streptococcal arthritis, unspecified elbow | ✓ |
| M00.231 | Other streptococcal arthritis, right wrist | ✓ |
| M00.231 | Other streptococcal arthritis, right wrist | ✓ |
| M00.232 | Other streptococcal arthritis, left wrist | ✓ |
| M00.232 | Other streptococcal arthritis, left wrist | ✓ |
| M00.239 | Other streptococcal arthritis, unspecified wrist | ✓ |
| M00.239 | Other streptococcal arthritis, unspecified wrist | ✓ |
| M00.241 | Other streptococcal arthritis, right hand | ✓ |
| M00.241 | Other streptococcal arthritis, right hand | ✓ |
| M00.242 | Other streptococcal arthritis, left hand | ✓ |
| M00.242 | Other streptococcal arthritis, left hand | ✓ |
| M00.249 | Other streptococcal arthritis, unspecified hand | ✓ |
| M00.249 | Other streptococcal arthritis, unspecified hand | ✓ |
| M00.251 | Other streptococcal arthritis, right hip | ✓ |
| M00.251 | Other streptococcal arthritis, right hip | ✓ |
| M00.252 | Other streptococcal arthritis, left hip | ✓ |
| M00.252 | Other streptococcal arthritis, left hip | ✓ |
| M00.259 | Other streptococcal arthritis, unspecified hip | ✓ |
| M00.259 | Other streptococcal arthritis, unspecified hip | ✓ |
| M00.261 | Other streptococcal arthritis, right knee | ✓ |
| M00.261 | Other streptococcal arthritis, right knee | ✓ |
| M00.262 | Other streptococcal arthritis, left knee | ✓ |
| M00.262 | Other streptococcal arthritis, left knee | ✓ |
| M00.269 | Other streptococcal arthritis, unspecified knee | ✓ |
| M00.269 | Other streptococcal arthritis, unspecified knee | ✓ |
| M00.271 | Other streptococcal arthritis, right ankle and foot | ✓ |
| M00.271 | Other streptococcal arthritis, right ankle and foot | ✓ |
| M00.272 | Other streptococcal arthritis, left ankle and foot | ✓ |
| M00.272 | Other streptococcal arthritis, left ankle and foot | ✓ |
| M00.279 | Other streptococcal arthritis, unspecified ankle and foot | ✓ |
| M00.279 | Other streptococcal arthritis, unspecified ankle and foot | ✓ |
| M00.811 | Arthritis due to other bacteria, right shoulder | ✓ |
| M00.811 | Arthritis due to other bacteria, right shoulder | ✓ |
| M00.812 | Arthritis due to other bacteria, left shoulder | ✓ |
| M00.812 | Arthritis due to other bacteria, left shoulder | ✓ |
| M00.819 | Arthritis due to other bacteria, unspecified shoulder | ✓ |
| M00.819 | Arthritis due to other bacteria, unspecified shoulder | ✓ |
| M00.821 | Arthritis due to other bacteria, right elbow | ✓ |
| M00.821 | Arthritis due to other bacteria, right elbow | ✓ |
| M00.822 | Arthritis due to other bacteria, left elbow | ✓ |
| M00.822 | Arthritis due to other bacteria, left elbow | ✓ |
| M00.829 | Arthritis due to other bacteria, unspecified elbow | ✓ |
| M00.829 | Arthritis due to other bacteria, unspecified elbow | ✓ |
| M00.831 | Arthritis due to other bacteria, right wrist | ✓ |
| M00.831 | Arthritis due to other bacteria, right wrist | ✓ |
| M00.832 | Arthritis due to other bacteria, left wrist | ✓ |
| M00.832 | Arthritis due to other bacteria, left wrist | ✓ |
| M00.839 | Arthritis due to other bacteria, unspecified wrist | ✓ |
| M00.839 | Arthritis due to other bacteria, unspecified wrist | ✓ |
| M00.841 | Arthritis due to other bacteria, right hand | ✓ |
| M00.841 | Arthritis due to other bacteria, right hand | ✓ |
| M00.842 | Arthritis due to other bacteria, left hand | ✓ |
| M00.842 | Arthritis due to other bacteria, left hand | ✓ |
| M00.849 | Arthritis due to other bacteria, unspecified hand | ✓ |
| M00.849 | Arthritis due to other bacteria, unspecified hand | ✓ |
| M00.851 | Arthritis due to other bacteria, right hip | ✓ |
| M00.851 | Arthritis due to other bacteria, right hip | ✓ |
| M00.852 | Arthritis due to other bacteria, left hip | ✓ |
| M00.852 | Arthritis due to other bacteria, left hip | ✓ |
| M00.859 | Arthritis due to other bacteria, unspecified hip | ✓ |
| M00.859 | Arthritis due to other bacteria, unspecified hip | ✓ |
| M00.861 | Arthritis due to other bacteria, right knee | ✓ |
| M00.861 | Arthritis due to other bacteria, right knee | ✓ |
| M00.862 | Arthritis due to other bacteria, left knee | ✓ |
| M00.862 | Arthritis due to other bacteria, left knee | ✓ |
| M00.869 | Arthritis due to other bacteria, unspecified knee | ✓ |
| M00.869 | Arthritis due to other bacteria, unspecified knee | ✓ |
| M00.871 | Arthritis due to other bacteria, right ankle and foot | ✓ |
| M00.871 | Arthritis due to other bacteria, right ankle and foot | ✓ |
| M00.872 | Arthritis due to other bacteria, left ankle and foot | ✓ |
| M00.872 | Arthritis due to other bacteria, left ankle and foot | ✓ |
| M00.879 | Arthritis due to other bacteria, unspecified ankle and foot | ✓ |
| M00.879 | Arthritis due to other bacteria, unspecified ankle and foot | ✓ |
Frequently asked questions
What is ICD-10-CM code M00?
M00 is an ICD-10-CM category covering Pyogenic arthritis. It contains 258 more specific diagnosis codes, 194 of which are billable.
Is M00 a billable code?
No — M00 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example M00.0 — Staphylococcal arthritis and polyarthritis). 194 of the 258 codes under M00 are billable.
What codes fall under M00?
M00 includes M00.0, M00.0, M00.00, M00.00, M00.01, plus 253 more. See the full list with descriptions and billable status above.
More free billing tools: all ICD-10 categories · ICD-10 search · denial codes · Medicare fees
Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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