M27.0 — Developmental disorders of jaws
M27.0 is a billable, specific ICD-10-CM code for developmental disorders of jaws. It is valid for submission on a claim.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Latent bone cyst of jaw
- Stafne's cyst
- Torus mandibularis
- Torus palatinus
Other codes that can never be billed with M27.0
These codes carry an Excludes1 note pointing at M27.0. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading M27.0 alone.
- M27.4Other and unspecified cysts of jaw
Risk adjustment
M27.0 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
M27.0 is named in 8 Medicare coverage policies — 2 listing it as supporting medical necessity, and 6 listing it as NOT covered. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A58865Billing and Coding: Amniotic and Placental-Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Woundnot covered
- A58893Billing and Coding: Amniotic and Placental-Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Woundnot covered
- A59374Billing and Coding: Amniotic and Placental-Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Woundnot covered
- A59434Billing and Coding: Amniotic and Placental-Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Woundnot covered
How M27.0 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to M27.0.
- Stafne's cyst or cavity
- Torus(mandibularis) (palatinus)
- Cyst›Stafne's
- Disorder›jaw, developmental
- Cyst›bone NEC›specified type NEC›jaw›latent
Related codes at this level
Codes that share M27. If M27.0 is not quite right, the correct code is usually one of these.
- M27.1Giant cell granuloma, central
- M27.2Inflammatory conditions of jaws
- M27.3Alveolitis of jaws
- M27.4Other and unspecified cysts of jaw
- M27.5Periradicular pathology associated with previous endodontic treatment
- M27.6Endosseous dental implant failure
- M27.8Other specified diseases of jaws
- M27.9Disease of jaws, unspecified
Questions about M27.0
- Is M27.0 a billable ICD-10-CM code?
- Yes. M27.0 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does M27.0 sit in the tabular list?
- Diseases of the musculoskeletal system and connective tissue (M00-M99), in the block Dentofacial anomalies [including malocclusion] and other disorders of jaw (M26-M27).