M26.611 — Adhesions and ankylosis of right temporomandibular joint
Is M26.611 billable?
Yes — M26.611 is billable for FY2027. M26.611 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. M26.611 may be submitted for encounters from October 1, 2026 through September 30, 2027.
M26.611 at a glance
| Code | M26.611 |
|---|---|
| Description | Adhesions and ankylosis of right temporomandibular joint |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does M26.611 group to?
M26.611 sits in MDC Pre and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 011Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy with MCCsurgical
- 012Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy with CCsurgical
- 013Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy without CC/MCCsurgical
How is M26.611 listed in the Alphabetic Index?
The Alphabetic Index lists these routes under M26.61, the nearest indexed parent of M26.611. Use them to find the family, then select the specific code.
- Adhesions, adhesive › temporomandibular (postinfective)
- Ankylosis › jaw (fibrous) (osseous) (joint)
- Ankylosis › temporomandibular (fibrous) (osseous) (joint)
- Adhesions, adhesive › joint › temporomandibular (postinfective)
- Anomaly, anomalous › dentofacial › temporomandibular joint › adhesions (congenital) (unspecified type)
- Anomaly, anomalous › dentofacial › temporomandibular joint › ankylosis (congenital) (unspecified type)
Excludes1 — never code together — inherited from M26-M27
The conditions below can never be reported together with M26.611 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Excludes2 — not included here — inherited from Chapter 13
The conditions below are not part of M26.611, but a patient may have both at the same time. When documentation supports it, M26.611 and the excluded code may both be reported.
- arthropathic psoriasis (L40.5-)
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- compartment syndrome (traumatic) (T79.A-)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Excludes2 — not included here — inherited from M26.6
The conditions below are not part of M26.611, but a patient may have both at the same time. When documentation supports it, M26.611 and the excluded code may both be reported.
How long has M26.611 existed?
M26.611 first appears in FY2018 (FY2017 is not available, so it may have appeared then).
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.