M85.369 is the authoritative medical code for Osteitis condensans, unspecified lower leg. This classification is used in medical billing and clinical recording to specify the clinical criteria for osteitis condensans, unspecified lower leg (ICD-10-CM M85.369), 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
Osteitis condensans, unspecified lower leg is a billable ICD-10-CM diagnosis code M85.369. Excludes1 (not coded here): osteogenesis imperfecta Q78.0; osteopetrosis Q78.2; osteopoikilosis Q78.8; polyostotic fibrous dysplasia Q78.1.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for M85.369 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.
- osteogenesis imperfecta Q78.0
- osteopetrosis Q78.2
- osteopoikilosis Q78.8
- polyostotic fibrous dysplasia Q78.1
Frequently Asked Questions (FAQ) & Clinical Guidance
What can't be coded together with M85.369?
Per official ICD-10-CM Excludes1 instructions, M85.369 must not be reported together with: osteogenesis imperfecta (Q78.0); osteopetrosis (Q78.2); osteopoikilosis (Q78.8); polyostotic fibrous dysplasia (Q78.1).
Nearest Codes in This Family
Official ICD-10-CM classifications closest to M85.369 in its code family, with their registry titles.
- M85 — Other disorders of bone density and structure
- M85.0 — Fibrous dysplasia (monostotic)
- M85.00 — Fibrous dysplasia (monostotic), unspecified site
- M85.01 — Fibrous dysplasia (monostotic), shoulder
- M85.011 — Fibrous dysplasia (monostotic), right shoulder
- M85.012 — Fibrous dysplasia (monostotic), left shoulder
- M85.019 — Fibrous dysplasia (monostotic), unspecified shoulder
- M85.02 — Fibrous dysplasia (monostotic), upper arm
- M85.021 — Fibrous dysplasia (monostotic), right upper arm
- M85.022 — Fibrous dysplasia (monostotic), left upper arm
View all 40 codes in the M85 family