M86.28 is the authoritative medical code for Subacute osteomyelitis, other site. This classification is used in medical billing and clinical recording to specify the clinical criteria for subacute osteomyelitis, other site (ICD-10-CM M86.28), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Subacute osteomyelitis, other site is a billable ICD-10-CM diagnosis code M86.28. Excludes1 (not coded here): osteomyelitis due to:; echinococcus B67.2; gonococcus A54.43; salmonella A02.24; postprocedural osteopathies M96.-. 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; code to identify major osseous defect, if applicable M89.7-.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for M86.28 in the official ICD-10-CM tabular list.
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- osteomyelitis due to:
- echinococcus B67.2
- gonococcus A54.43
- salmonella A02.24
- postprocedural osteopathies M96.-
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- ostemyelitis of:
- orbit H05.0-
- petrous bone H70.2-
- vertebra M46.2-
Use Additional Code
Supplementary codes the tabular list directs you to add.
- code B95-B97 to identify infectious agent
- code to identify major osseous defect, if applicable M89.7-
Frequently Asked Questions (FAQ) & Clinical Guidance
What can't be coded together with M86.28?
Per Excludes1 instructions, M86.28 must not be reported with: osteomyelitis due to:; echinococcus (B67.2); gonococcus (A54.43); salmonella (A02.24).
Can M86.28 be reported alongside related conditions?
Per Excludes2 instructions, M86.28 and the following may both be reported when both are present: ostemyelitis of:; orbit (H05.0-); petrous bone (H70.2-); vertebra (M46.2-).
Is an additional code needed with M86.28?
Use additional code(s) to specify: code (B95-B97) to identify infectious agent; code to identify major osseous defect, if applicable (M89.7-).
Codes in This Family (40)
Official ICD-10-CM classifications in the same code family as M86.28, with their registry titles.
- M86 — Osteomyelitis
- M86.0 — Acute hematogenous osteomyelitis
- 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
Indexed Clinical Terms (3)
Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.
- Osteomyelitis (general) (infective) (localized) (neonatal) (purulent) (septic) (staphylococcal) (streptococcal) (suppurative) (with periostitis), subacute, neck
- Osteomyelitis (general) (infective) (localized) (neonatal) (purulent) (septic) (staphylococcal) (streptococcal) (suppurative) (with periostitis), subacute, rib
- Osteomyelitis (general) (infective) (localized) (neonatal) (purulent) (septic) (staphylococcal) (streptococcal) (suppurative) (with periostitis), subacute, skull
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures: