ICD-10-CM category M00: Pyogenic arthritis
Category M00 is a heading in chapter 13 (Diseases of the musculoskeletal system and connective tissue (M00-M99)), section Infectious arthropathies (M00-M02). It is not billable; report one of the 97 complete codes below.
Notes that apply to every M00 code
- Excludes2 (not part of this condition, may be coded together)
- infection and inflammatory reaction due to internal joint prosthesis (T84.5-)
Billable codes in M00
| Code | Description |
|---|---|
| M00.00 | Staphylococcal arthritis, unspecified joint |
| M00.011 | Staphylococcal arthritis, right shoulder |
| M00.012 | Staphylococcal arthritis, left shoulder |
| M00.019 | Staphylococcal arthritis, unspecified shoulder |
| M00.021 | Staphylococcal arthritis, right elbow |
| M00.022 | Staphylococcal arthritis, left elbow |
| M00.029 | Staphylococcal arthritis, unspecified elbow |
| M00.031 | Staphylococcal arthritis, right wrist |
| M00.032 | Staphylococcal arthritis, left wrist |
| M00.039 | Staphylococcal arthritis, unspecified wrist |
| M00.041 | Staphylococcal arthritis, right hand |
| M00.042 | Staphylococcal arthritis, left hand |
| M00.049 | Staphylococcal arthritis, unspecified hand |
| M00.051 | Staphylococcal arthritis, right hip |
| M00.052 | Staphylococcal arthritis, left hip |
| M00.059 | Staphylococcal arthritis, unspecified hip |
| M00.061 | Staphylococcal arthritis, right knee |
| M00.062 | Staphylococcal arthritis, left knee |
| M00.069 | Staphylococcal arthritis, unspecified knee |
| M00.071 | Staphylococcal arthritis, right ankle and foot |
| M00.072 | Staphylococcal arthritis, left ankle and foot |
| M00.079 | Staphylococcal arthritis, unspecified ankle and foot |
| M00.08 | Staphylococcal arthritis, vertebrae |
| M00.09 | Staphylococcal polyarthritis |
| M00.10 | Pneumococcal arthritis, unspecified joint |
| M00.111 | Pneumococcal arthritis, right shoulder |
| M00.112 | Pneumococcal arthritis, left shoulder |
| M00.119 | Pneumococcal arthritis, unspecified shoulder |
| M00.121 | Pneumococcal arthritis, right elbow |
| M00.122 | Pneumococcal arthritis, left elbow |
| M00.129 | Pneumococcal arthritis, unspecified elbow |
| M00.131 | Pneumococcal arthritis, right wrist |
| M00.132 | Pneumococcal arthritis, left wrist |
| M00.139 | Pneumococcal arthritis, unspecified wrist |
| M00.141 | Pneumococcal arthritis, right hand |
| M00.142 | Pneumococcal arthritis, left hand |
| M00.149 | Pneumococcal arthritis, unspecified hand |
| M00.151 | Pneumococcal arthritis, right hip |
| M00.152 | Pneumococcal arthritis, left hip |
| M00.159 | Pneumococcal arthritis, unspecified hip |
| M00.161 | Pneumococcal arthritis, right knee |
| M00.162 | Pneumococcal arthritis, left knee |
| M00.169 | Pneumococcal arthritis, unspecified knee |
| 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 |
| M00.20 | Other streptococcal arthritis, unspecified joint |
| M00.211 | Other streptococcal arthritis, right shoulder |
| M00.212 | Other streptococcal arthritis, left shoulder |
| M00.219 | Other streptococcal arthritis, unspecified shoulder |
| M00.221 | Other streptococcal arthritis, right elbow |
| M00.222 | Other streptococcal arthritis, left elbow |
| M00.229 | Other streptococcal arthritis, unspecified elbow |
| M00.231 | Other streptococcal arthritis, right wrist |
| M00.232 | Other streptococcal arthritis, left wrist |
| M00.239 | Other streptococcal arthritis, unspecified wrist |
| M00.241 | Other streptococcal arthritis, right hand |
| M00.242 | Other streptococcal arthritis, left hand |
| M00.249 | Other streptococcal arthritis, unspecified hand |
| M00.251 | Other streptococcal arthritis, right hip |
| M00.252 | Other streptococcal arthritis, left hip |
| M00.259 | Other streptococcal arthritis, unspecified hip |
| M00.261 | Other streptococcal arthritis, right knee |
| M00.262 | Other streptococcal arthritis, left knee |
| M00.269 | Other streptococcal arthritis, unspecified knee |
| M00.271 | Other streptococcal arthritis, right ankle and foot |
| M00.272 | Other streptococcal arthritis, left ankle and foot |
| M00.279 | Other streptococcal arthritis, unspecified ankle and foot |
| M00.28 | Other streptococcal arthritis, vertebrae |
| M00.29 | Other streptococcal polyarthritis |
| M00.80 | Arthritis due to other bacteria, unspecified joint |
| M00.811 | Arthritis due to other bacteria, right shoulder |
| M00.812 | Arthritis due to other bacteria, left shoulder |
| M00.819 | Arthritis due to other bacteria, unspecified shoulder |
| M00.821 | Arthritis due to other bacteria, right elbow |
| M00.822 | Arthritis due to other bacteria, left elbow |
| M00.829 | Arthritis due to other bacteria, unspecified elbow |
| M00.831 | Arthritis due to other bacteria, right wrist |
| M00.832 | Arthritis due to other bacteria, left wrist |
| M00.839 | Arthritis due to other bacteria, unspecified wrist |
| M00.841 | Arthritis due to other bacteria, right hand |
| M00.842 | Arthritis due to other bacteria, left hand |
| M00.849 | Arthritis due to other bacteria, unspecified hand |
| M00.851 | Arthritis due to other bacteria, right hip |
| M00.852 | Arthritis due to other bacteria, left hip |
| M00.859 | Arthritis due to other bacteria, unspecified hip |
| M00.861 | Arthritis due to other bacteria, right knee |
| M00.862 | Arthritis due to other bacteria, left knee |
| M00.869 | Arthritis due to other bacteria, unspecified knee |
| M00.871 | Arthritis due to other bacteria, right 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 |
| M00.88 | Arthritis due to other bacteria, vertebrae |
| M00.89 | Polyarthritis due to other bacteria |
| M00.9 | Pyogenic arthritis, unspecified |
Sources
Every figure on this page is taken from the CMS publications below, as released by the Centers for Medicare & Medicaid Services. Projection built 2026-10-10. Verify against the primary file before billing or contracting decisions. The reference methodology explains how each figure is computed from these files.
- ICD-10-CM FY2027 tabular order file (category titles)Version FY2027 · effective 2026-10-01 · file icd10cm_order_2027.txtSHA-256 38981fb2c1226e2b…
- ICD-10-CM FY2027 tabular list (chapter titles and ranges)Version FY2027 · effective 2026-10-01 · file 2027-code-tables-tabular-index.zipSHA-256 37baa476323714be…
- ICD-10-CM FY2027 code descriptions addenda (codes added, deleted and revised)Version FY2027 · effective 2026-10-01 · file icd10cm_codes_addenda_2027.txtSHA-256 cfba025073235af4…
- ICD-10 MS-DRG Definitions Manual v44 (text)Version v44 · effective 2026-10-01 · file fy2027-fr-icd10-ms-drg-definitions-manual-files-v44.zipSHA-256 ae4f6c11727fe91f…
- IPPS FY2027 Tables 6A-6K: new, invalid and revised ICD-10-CM/PCS codes, CC/MCC list changes and CC exclusionsVersion FY2027 (final rule; not reissued by CN3) · effective 2026-10-01 · file fy2027-ipps-fr-tables-6a-6k.zipSHA-256 ca0af87b0869a405…
- ICD-10-CM FY2027 POA-exempt codes (full list, additions, deletions and revisions)Version FY2027 · effective 2026-10-01 · file 2027-poa-exempt-codes.zipSHA-256 03f55091045024d0…
- ICD-10-CM to CMS-HCC V28 mappings, payment year 2027 initialVersion PY2027 initial ICD-10-CM mappings (dates of service 2026) · effective 2027-01-01 · file 2027 Initial ICD-10-CM Mappings.csvSHA-256 9c260b06d0dd2806…
- Medicare Coverage Database, current Billing and Coding Articles exportVersion MCD release 2026-10-08 · effective 2026-10-04 · file article.csvSHA-256 5e95c4a8ac3664be…
Codes from the FY2027 ICD-10-CM files (all chapters). Report the code that matches the documentation and the Official Guidelines; this list is not coding advice.