M00.1
Pneumococcal arthritis and polyarthritis
Not billable — category only FY2026 2025-10-01 → 2026-09-30
Exclusions 11 never code together
M00-M99chapter
Excludes2
- arthropathic psoriasis (L40.5-)L40.5-
- certain conditions originating in the perinatal period (P04-P96)P04-P96
- certain infectious and parasitic diseases (A00-B99)A00-B99
- compartment syndrome (traumatic) (T79.A-)T79.A-
- complications of pregnancy, childbirth and the puerperium (O00-O9A)O00-O9A
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)Q00-Q99
- endocrine, nutritional and metabolic diseases (E00-E88)E00-E88
- injury, poisoning and certain other consequences of external causes (S00-T88)S00-T88
- neoplasms (C00-D49)C00-D49
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)R00-R94
Excludes2 — not included here, but the patient may have both. Code both when documented.
Instructional notes 2
Index entries leading here filed at null
No alphabetic index entry points at this code.
Alongside this code 4 same parent — M00
Subordinate codes 10
M00.10 Pneumococcal arthritis, unspecified joint M00.11 Pneumococcal arthritis, shoulder M00.12 Pneumococcal arthritis, elbow M00.13 Pneumococcal arthritis, wrist M00.14 Pneumococcal arthritis, hand M00.15 Pneumococcal arthritis, hip M00.16 Pneumococcal arthritis, knee M00.17 Pneumococcal arthritis, ankle and foot M00.18 Pneumococcal arthritis, vertebrae M00.19 Pneumococcal polyarthritis
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.