ICD-10 Code for Osteitis

The ICD-10-CM 2027 alphabetic index lists osteitis with the subterms below. More specific codes depend on the details documented, as listed in the official index (35 codes, 21 billable).

Index entries for Osteitis

alveolar – M27.3
condensans – M85.30
- ankle – M85.37- (header)
- foot – M85.37- (header)
- forearm – M85.33- (header)
- hand – M85.34- (header)
- lower leg – M85.36- (header)
- multiple site – M85.39
- neck – M85.38
- rib – M85.38
- shoulder – M85.31- (header)
- skull – M85.38
- specified site NEC – M85.38
- thigh – M85.35- (header)
- toe – M85.37- (header)
- upper arm – M85.32- (header)
- vertebra – M85.38
deformans – M88.9 – see also Paget's disease, bone
- in (due to)
  - malignant neoplasm of bone (see also, Neoplasm, malignant, by site) – C41.9 – M90.60 [manifestation]
  - neoplastic disease – D49.9 – M90.60 [manifestation] – see also Neoplasm, by type and site
    - carpus – D49.2 – M90.64- (header) [manifestation]
    - clavicle – D49.2 – M90.61- (header) [manifestation]
    - femur – D49.2 – M90.65- (header) [manifestation]
    - fibula – D49.2 – M90.66- (header) [manifestation]
    - finger – D49.2 – M90.64- (header) [manifestation]
    - humerus – D49.2 – M90.62- (header) [manifestation]
    - ilium – D49.2 – M90.68 [manifestation]
    - ischium – D49.2 – M90.68 [manifestation]
    - metacarpus – D49.2 – M90.64- (header) [manifestation]
    - metatarsus – D49.2 – M90.67- (header) [manifestation]
    - multiple sites – D49.89 – M90.69 [manifestation]
    - neck – D49.2 – M90.68 [manifestation]
    - pubic ramus – pubis] D49.2 [M90.68 [manifestation]
    - radius – D49.2 – M90.63- (header) [manifestation]
    - rib – D49.2 – M90.68 [manifestation]
    - scapula – D49.2 – M90.61- (header) [manifestation]
    - skull – D49.2 – M90.68 [manifestation]
    - tarsus – D49.2 – M90.67- (header) [manifestation]
    - tibia – D49.2 – M90.66- (header) [manifestation]
    - toe – D49.2 – M90.67- (header) [manifestation]
    - ulna – D49.2 – M90.63- (header) [manifestation]
    - vertebra – D49.2 – M90.68 [manifestation]
- skull – M88.0
- specified NEC – see Paget's disease, bone, by site
- vertebra – M88.1
due to yaws – A66.6
fibrosa NEC – see Cyst, bone, by site
- circumscripta – see Dysplasia, fibrous, bone NEC
- cystica (generalisata) – E21.0
- disseminata – Q78.1
- osteoplastica – E21.0
fragilitans – Q78.0
Garr's (sclerosing) – see Osteomyelitis, specified type NEC
jaw (acute) (chronic) (lower) (suppurative) (upper) – M27.2
parathyroid – E21.0
petrous bone (acute) (chronic) – see Petrositis
sclerotic, nonsuppurative – see Osteomyelitis, specified type NEC
tuberculosa – A18.09
- cystica – D86.89
- multiplex cystoides – D86.89

How to choose the right code

Start with the main term, then pick the indented subterm that matches the documentation (type, cause, site, laterality, episode of care). Always confirm the code in the tabular list: follow its Excludes1/Excludes2, “code first” and “use additional code” notes, and add a 7th character where required.

Source: CDC/NCHS ICD-10-CM FY2027 alphabetic index.