M00.85 ICD-10-CA code: Arthritis and polyarthritis due to other specified bacterial agents, pelvic region and thigh

M00.85 is the ICD-10-CA code for “Arthritis and polyarthritis due to other specified bacterial agents, pelvic region and thigh” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.

Official description

M00.85

Arthritis and polyarthritis due to other specified bacterial agents, pelvic region and thigh

Short description: Arthr polyarthr dt oth bact pelv thigh

ICD-10-CA · Canada · Also written M0085

Notes for M00.85

As CIHI prints them, with any note M00.85 takes from the headings above it.

Includes

Disorders affecting predominantly peripheral (limb) jointsFrom M00-M25 Arthropathies

Use additional code

Add a code for this detail when the note documents it.

Use additional code (B95-B96) to identify bacterial agent.From M00.8 Arthritis and polyarthritis due to other specified bacterial agents

Excludes

Conditions classified elsewhere.

Infection and inflammatory reaction due to internal joint prosthesis (T84.5-)From M00 Pyogenic arthritis
Certain:• conditions originating in the perinatal period (P00-P96)• disorders of the temporomandibular joint (K07.6)• infectious and parasitic diseases (A00-B99)compartment syndrome (T79.6)complications of pregnancy, childbirth and the puerperium (O00-O99)congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)endocrine, nutritional and metabolic diseases (E00-E90)injury, poisoning and certain other consequences of external causes (S00-T98)neoplasms (C00-D48)symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)From Chapter 13: Diseases of the musculoskeletal system and connective tissue (M00-M99)

Note

[To review the anatomical site captured in the 5th character subclassification see Chapter XIII]From M00.8 Arthritis and polyarthritis due to other specified bacterial agents
This block comprises arthropathies due to microbiological agents. Distinction is made between the following types of etiological relationship:a) direct infection of joint, where organisms invade synovial tissue and microbial antigen is present in the joint;b) indirect infection, which may be of two types: a reactive arthropathy, where microbial infection of the body is established but neither organisms nor antigens can be identified in the joint, and a postinfective arthropathy, where microbial antigen is present but recovery of an organism is inconstant and evidence of local multiplication is lacking.From M00-M03 Infectious arthropathies
The following fifth characters represent the following sites of involvement:0 Multiple sites1 Shoulder region: clavical , scapula — joint acromioclavicular, glenohumeral, sternoclavicular2 Upper arm: humerus — elbow joint,3 Forearm: radius , ulna — wrist joint,4 Hand: carpus, fingers, metacarpus — joints between these bones,5 Pelvic region and thigh: buttock , femur , pelvis — joint hip , sacroiliac6 Lower leg: fibula , tibia — knee joint7 Ankle and foot: metatarsus, tarsus, toes — other joints in foot8 Other:head neck ribs skull trunk vertebral column9 Site unspecifiedFrom Chapter 13: Diseases of the musculoskeletal system and connective tissue (M00-M99)

Where M00.85 sits

1ChapterChapter 13: Diseases of the musculoskeletal system and connective tissue (M00-M99)
2Block M00-M25Arthropathies
3Block M00-M03Infectious arthropathies
4Category M00Pyogenic arthritis
5Subcategory M00.8Arthritis and polyarthritis due to other specified bacterial agents
6Valid code M00.85Arthritis and polyarthritis due to other specified bacterial agents, pelvic region and thigh

Source and release

Data release: ICD-10-CA · FY 2026–2027
Effective date: Apr 1, 2026
Publisher: CIHI

This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.

See M00.85 in the CIHI source

Frequently asked questions

What does ICD-10-CA code M00.85 mean?

M00.85 is the ICD-10-CA code for “Arthritis and polyarthritis due to other specified bacterial agents, pelvic region and thigh” in CIHI’s ICD-10-CA FY 2026–2027 release.

Where is M00.85 in ICD-10-CA?

M00.85 sits under M00.8 Arthritis and polyarthritis due to other specified bacterial agents, within M00 Pyogenic arthritis, within M00-M03 Infectious arthropathies, within M00-M25 Arthropathies, within Chapter 13: Diseases of the musculoskeletal system and connective tissue (M00-M99).

What coding notes apply to M00.85?

ICD-10-CA lists Note, Use additional code, Excludes, Includes notes for M00.85, including those from the headings it sits under. They are listed on this page with where each one comes from.

Which ICD-10-CA release does this page use?

It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.

View M00.8