ICD-10-CM Diagnosis Code (2025)
Official Description for M86
Osteomyelitis
Coding Notes & Guidelines for M86
Excludes1: Not Coded Here
- osteomyelitis due to:
- echinococcus (B67.2)
- gonococcus (A54.43)
- salmonella (A02.24)
Excludes2: Not Included Here
- ostemyelitis of:
- orbit (H05.0-)
- petrous bone (H70.2-)
- vertebra (M46.2-)
Use Additional Code
code (B95-B97) to identify infectious agent
Use Additional Code
code to identify major osseous defect, if applicable (M89.7-)
Inclusion Terms
Brodie's abscess
Inclusion Terms
- Infection of bone NOS
- Periostitis without osteomyelitis
Child Codes (More Specific Codes for M86):
M86.0 - Acute hematogenous osteomyelitis
M86.00 - Acute hematogenous osteomyelitis, unspecified site
M86.01 - Acute hematogenous osteomyelitis, shoulder
M86.011 - Acute hematogenous osteomyelitis, right shoulder
M86.012 - Acute hematogenous osteomyelitis, left shoulder
M86.019 - Acute hematogenous osteomyelitis, unspecified shoulder
M86.02 - Acute hematogenous osteomyelitis, humerus
M86.021 - Acute hematogenous osteomyelitis, right humerus
M86.022 - Acute hematogenous osteomyelitis, left humerus
M86.029 - Acute hematogenous osteomyelitis, unspecified humerus
M86.03 - Acute hematogenous osteomyelitis, radius and ulna
M86.031 - Acute hematogenous osteomyelitis, right radius and ulna
M86.032 - Acute hematogenous osteomyelitis, left radius and ulna
M86.039 - Acute hematogenous osteomyelitis, unspecified radius and ulna
M86.04 - Acute hematogenous osteomyelitis, hand
M86.041 - Acute hematogenous osteomyelitis, right hand
M86.042 - Acute hematogenous osteomyelitis, left hand
M86.049 - Acute hematogenous osteomyelitis, unspecified hand
M86.05 - Acute hematogenous osteomyelitis, femur
M86.051 - Acute hematogenous osteomyelitis, right femur
M86.052 - Acute hematogenous osteomyelitis, left femur
M86.059 - Acute hematogenous osteomyelitis, unspecified femur
M86.06 - Acute hematogenous osteomyelitis, tibia and fibula
M86.061 - Acute hematogenous osteomyelitis, right tibia and fibula
M86.062 - Acute hematogenous osteomyelitis, left tibia and fibula
M86.069 - Acute hematogenous osteomyelitis, unspecified tibia and fibula
M86.07 - Acute hematogenous osteomyelitis, ankle and foot
M86.071 - Acute hematogenous osteomyelitis, right ankle and foot
M86.072 - Acute hematogenous osteomyelitis, left ankle and foot
M86.079 - Acute hematogenous osteomyelitis, unspecified ankle and foot
M86.08 - Acute hematogenous osteomyelitis, other sites
M86.09 - Acute hematogenous osteomyelitis, multiple sites
M86.1 - Other acute osteomyelitis
M86.10 - Other acute osteomyelitis, unspecified site
M86.11 - Other acute osteomyelitis, shoulder
M86.111 - Other acute osteomyelitis, right shoulder
M86.112 - Other acute osteomyelitis, left shoulder
M86.119 - Other acute osteomyelitis, unspecified shoulder
M86.12 - Other acute osteomyelitis, humerus
M86.121 - Other acute osteomyelitis, right humerus
M86.122 - Other acute osteomyelitis, left humerus
M86.129 - Other acute osteomyelitis, unspecified humerus
M86.13 - Other acute osteomyelitis, radius and ulna
M86.131 - Other acute osteomyelitis, right radius and ulna
M86.132 - Other acute osteomyelitis, left radius and ulna
M86.139 - Other acute osteomyelitis, unspecified radius and ulna
M86.14 - Other acute osteomyelitis, hand
M86.141 - Other acute osteomyelitis, right hand
M86.142 - Other acute osteomyelitis, left hand
M86.149 - Other acute osteomyelitis, unspecified hand
M86.15 - Other acute osteomyelitis, femur
M86.151 - Other acute osteomyelitis, right femur
M86.152 - Other acute osteomyelitis, left femur
M86.159 - Other acute osteomyelitis, unspecified femur
M86.16 - Other acute osteomyelitis, tibia and fibula
M86.161 - Other acute osteomyelitis, right tibia and fibula
M86.162 - Other acute osteomyelitis, left tibia and fibula
M86.169 - Other acute osteomyelitis, unspecified tibia and fibula
M86.17 - Other acute osteomyelitis, ankle and foot
M86.171 - Other acute osteomyelitis, right ankle and foot
M86.172 - Other acute osteomyelitis, left ankle and foot
M86.179 - Other acute osteomyelitis, unspecified ankle and foot
M86.18 - Other acute osteomyelitis, other site
M86.19 - Other acute osteomyelitis, multiple sites
M86.2 - Subacute osteomyelitis
M86.20 - Subacute osteomyelitis, unspecified site
M86.21 - Subacute osteomyelitis, shoulder
M86.211 - Subacute osteomyelitis, right shoulder
M86.212 - Subacute osteomyelitis, left shoulder
M86.219 - Subacute osteomyelitis, unspecified shoulder
M86.22 - Subacute osteomyelitis, humerus
M86.221 - Subacute osteomyelitis, right humerus
M86.222 - Subacute osteomyelitis, left humerus
M86.229 - Subacute osteomyelitis, unspecified humerus
M86.23 - Subacute osteomyelitis, radius and ulna
M86.231 - Subacute osteomyelitis, right radius and ulna
M86.232 - Subacute osteomyelitis, left radius and ulna
M86.239 - Subacute osteomyelitis, unspecified radius and ulna
M86.24 - Subacute osteomyelitis, hand
M86.241 - Subacute osteomyelitis, right hand
M86.242 - Subacute osteomyelitis, left hand
M86.249 - Subacute osteomyelitis, unspecified hand
M86.25 - Subacute osteomyelitis, femur
M86.251 - Subacute osteomyelitis, right femur
M86.252 - Subacute osteomyelitis, left femur
M86.259 - Subacute osteomyelitis, unspecified femur
M86.26 - Subacute osteomyelitis, tibia and fibula
M86.261 - Subacute osteomyelitis, right tibia and fibula
M86.262 - Subacute osteomyelitis, left tibia and fibula
M86.269 - Subacute osteomyelitis, unspecified tibia and fibula
M86.27 - Subacute osteomyelitis, ankle and foot
M86.271 - Subacute osteomyelitis, right ankle and foot
M86.272 - Subacute osteomyelitis, left ankle and foot
M86.279 - Subacute osteomyelitis, unspecified ankle and foot
M86.28 - Subacute osteomyelitis, other site
M86.29 - Subacute osteomyelitis, multiple sites
M86.3 - Chronic multifocal osteomyelitis
M86.30 - Chronic multifocal osteomyelitis, unspecified site
M86.31 - Chronic multifocal osteomyelitis, shoulder
M86.311 - Chronic multifocal osteomyelitis, right shoulder
M86.312 - Chronic multifocal osteomyelitis, left shoulder
M86.319 - Chronic multifocal osteomyelitis, unspecified shoulder
M86.32 - Chronic multifocal osteomyelitis, humerus
M86.321 - Chronic multifocal osteomyelitis, right humerus
M86.322 - Chronic multifocal osteomyelitis, left humerus
M86.329 - Chronic multifocal osteomyelitis, unspecified humerus
M86.33 - Chronic multifocal osteomyelitis, radius and ulna
M86.331 - Chronic multifocal osteomyelitis, right radius and ulna
M86.332 - Chronic multifocal osteomyelitis, left radius and ulna
M86.339 - Chronic multifocal osteomyelitis, unspecified radius and ulna
M86.34 - Chronic multifocal osteomyelitis, hand
M86.341 - Chronic multifocal osteomyelitis, right hand
M86.342 - Chronic multifocal osteomyelitis, left hand
M86.349 - Chronic multifocal osteomyelitis, unspecified hand
M86.35 - Chronic multifocal osteomyelitis, femur
M86.351 - Chronic multifocal osteomyelitis, right femur
M86.352 - Chronic multifocal osteomyelitis, left femur
M86.359 - Chronic multifocal osteomyelitis, unspecified femur
M86.36 - Chronic multifocal osteomyelitis, tibia and fibula
M86.361 - Chronic multifocal osteomyelitis, right tibia and fibula
M86.362 - Chronic multifocal osteomyelitis, left tibia and fibula
M86.369 - Chronic multifocal osteomyelitis, unspecified tibia and fibula
M86.37 - Chronic multifocal osteomyelitis, ankle and foot
M86.371 - Chronic multifocal osteomyelitis, right ankle and foot
M86.372 - Chronic multifocal osteomyelitis, left ankle and foot
M86.379 - Chronic multifocal osteomyelitis, unspecified ankle and foot
M86.38 - Chronic multifocal osteomyelitis, other site
M86.39 - Chronic multifocal osteomyelitis, multiple sites
M86.4 - Chronic osteomyelitis with draining sinus
M86.40 - Chronic osteomyelitis with draining sinus, unspecified site
M86.41 - Chronic osteomyelitis with draining sinus, shoulder
M86.411 - Chronic osteomyelitis with draining sinus, right shoulder
M86.412 - Chronic osteomyelitis with draining sinus, left shoulder
M86.419 - Chronic osteomyelitis with draining sinus, unspecified shoulder
M86.42 - Chronic osteomyelitis with draining sinus, humerus
M86.421 - Chronic osteomyelitis with draining sinus, right humerus
M86.422 - Chronic osteomyelitis with draining sinus, left humerus
M86.429 - Chronic osteomyelitis with draining sinus, unspecified humerus
M86.43 - Chronic osteomyelitis with draining sinus, radius and ulna
M86.431 - Chronic osteomyelitis with draining sinus, right radius and ulna
M86.432 - Chronic osteomyelitis with draining sinus, left radius and ulna
M86.439 - Chronic osteomyelitis with draining sinus, unspecified radius and ulna
M86.44 - Chronic osteomyelitis with draining sinus, hand
M86.441 - Chronic osteomyelitis with draining sinus, right hand
M86.442 - Chronic osteomyelitis with draining sinus, left hand
M86.449 - Chronic osteomyelitis with draining sinus, unspecified hand
M86.45 - Chronic osteomyelitis with draining sinus, femur
M86.451 - Chronic osteomyelitis with draining sinus, right femur
M86.452 - Chronic osteomyelitis with draining sinus, left femur
M86.459 - Chronic osteomyelitis with draining sinus, unspecified femur
M86.46 - Chronic osteomyelitis with draining sinus, tibia and fibula
M86.461 - Chronic osteomyelitis with draining sinus, right tibia and fibula
M86.462 - Chronic osteomyelitis with draining sinus, left tibia and fibula
M86.469 - Chronic osteomyelitis with draining sinus, unspecified tibia and fibula
M86.47 - Chronic osteomyelitis with draining sinus, ankle and foot
M86.471 - Chronic osteomyelitis with draining sinus, right ankle and foot
M86.472 - Chronic osteomyelitis with draining sinus, left ankle and foot
M86.479 - Chronic osteomyelitis with draining sinus, unspecified ankle and foot
M86.48 - Chronic osteomyelitis with draining sinus, other site
M86.49 - Chronic osteomyelitis with draining sinus, multiple sites
M86.5 - Other chronic hematogenous osteomyelitis
M86.50 - Other chronic hematogenous osteomyelitis, unspecified site
M86.51 - Other chronic hematogenous osteomyelitis, shoulder
M86.511 - Other chronic hematogenous osteomyelitis, right shoulder
M86.512 - Other chronic hematogenous osteomyelitis, left shoulder
M86.519 - Other chronic hematogenous osteomyelitis, unspecified shoulder
M86.52 - Other chronic hematogenous osteomyelitis, humerus
M86.521 - Other chronic hematogenous osteomyelitis, right humerus
M86.522 - Other chronic hematogenous osteomyelitis, left humerus
M86.529 - Other chronic hematogenous osteomyelitis, unspecified humerus
M86.53 - Other chronic hematogenous osteomyelitis, radius and ulna
M86.531 - Other chronic hematogenous osteomyelitis, right radius and ulna
M86.532 - Other chronic hematogenous osteomyelitis, left radius and ulna
M86.539 - Other chronic hematogenous osteomyelitis, unspecified radius and ulna
M86.54 - Other chronic hematogenous osteomyelitis, hand
M86.541 - Other chronic hematogenous osteomyelitis, right hand
M86.542 - Other chronic hematogenous osteomyelitis, left hand
M86.549 - Other chronic hematogenous osteomyelitis, unspecified hand
M86.55 - Other chronic hematogenous osteomyelitis, femur
M86.551 - Other chronic hematogenous osteomyelitis, right femur
M86.552 - Other chronic hematogenous osteomyelitis, left femur
M86.559 - Other chronic hematogenous osteomyelitis, unspecified femur
M86.56 - Other chronic hematogenous osteomyelitis, tibia and fibula
M86.561 - Other chronic hematogenous osteomyelitis, right tibia and fibula
M86.562 - Other chronic hematogenous osteomyelitis, left tibia and fibula
M86.569 - Other chronic hematogenous osteomyelitis, unspecified tibia and fibula
M86.57 - Other chronic hematogenous osteomyelitis, ankle and foot
M86.571 - Other chronic hematogenous osteomyelitis, right ankle and foot
M86.572 - Other chronic hematogenous osteomyelitis, left ankle and foot
M86.579 - Other chronic hematogenous osteomyelitis, unspecified ankle and foot
M86.58 - Other chronic hematogenous osteomyelitis, other site
M86.59 - Other chronic hematogenous osteomyelitis, multiple sites
M86.6 - Other chronic osteomyelitis
M86.60 - Other chronic osteomyelitis, unspecified site
M86.61 - Other chronic osteomyelitis, shoulder
M86.611 - Other chronic osteomyelitis, right shoulder
M86.612 - Other chronic osteomyelitis, left shoulder
M86.619 - Other chronic osteomyelitis, unspecified shoulder
M86.62 - Other chronic osteomyelitis, humerus
M86.621 - Other chronic osteomyelitis, right humerus
M86.622 - Other chronic osteomyelitis, left humerus
M86.629 - Other chronic osteomyelitis, unspecified humerus
M86.63 - Other chronic osteomyelitis, radius and ulna
M86.631 - Other chronic osteomyelitis, right radius and ulna
M86.632 - Other chronic osteomyelitis, left radius and ulna
M86.639 - Other chronic osteomyelitis, unspecified radius and ulna
M86.64 - Other chronic osteomyelitis, hand
M86.641 - Other chronic osteomyelitis, right hand
M86.642 - Other chronic osteomyelitis, left hand
M86.649 - Other chronic osteomyelitis, unspecified hand
M86.65 - Other chronic osteomyelitis, thigh
M86.651 - Other chronic osteomyelitis, right thigh
M86.652 - Other chronic osteomyelitis, left thigh
M86.659 - Other chronic osteomyelitis, unspecified thigh
M86.66 - Other chronic osteomyelitis, tibia and fibula
M86.661 - Other chronic osteomyelitis, right tibia and fibula
M86.662 - Other chronic osteomyelitis, left tibia and fibula
M86.669 - Other chronic osteomyelitis, unspecified tibia and fibula
M86.67 - Other chronic osteomyelitis, ankle and foot
M86.671 - Other chronic osteomyelitis, right ankle and foot
M86.672 - Other chronic osteomyelitis, left ankle and foot
M86.679 - Other chronic osteomyelitis, unspecified ankle and foot
M86.68 - Other chronic osteomyelitis, other site
M86.69 - Other chronic osteomyelitis, multiple sites
M86.8 - Other osteomyelitis
M86.8X - Other osteomyelitis
M86.8X0 - Other osteomyelitis, multiple sites
M86.8X1 - Other osteomyelitis, shoulder
M86.8X2 - Other osteomyelitis, upper arm
M86.8X3 - Other osteomyelitis, forearm
M86.8X4 - Other osteomyelitis, hand
M86.8X5 - Other osteomyelitis, thigh
M86.8X6 - Other osteomyelitis, lower leg
M86.8X7 - Other osteomyelitis, ankle and foot
M86.8X8 - Other osteomyelitis, other site
M86.8X9 - Other osteomyelitis, unspecified sites
M86.9 - Osteomyelitis, unspecified
About ICD-10-CM Code M86 (Osteomyelitis)
ICD-10-CM code M86 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM M86 became effective on October 1, 2024.
This page provides detailed information about M86 - Osteomyelitis. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Osteomyelitis.