M45.9
BillableAnkylosing spondylitis of unspecified sites in spine
Ankylosing spondylitis of unspecified sites in spine
Coding Notes
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Excludes 2
Conditions not included here, but the patient may have both
- 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)
- Behçet's disease (M35.2)
Also Known As / Clinical Terms
SNOMED CT
- AS - Ankylosing spondylitis9631008
- Ankylosing spondylitis9631008
- Bekhterev's disease9631008
- Idiopathic ankylosing spondylitis9631008
- Marie Strümpell spondylitis9631008
- Marie-Strumpell spondylitis9631008
- Spondylosis deformans9631008
- Ankylosing spondylitis with organ / system involvement239810002
- Ankylosing spondylitis with multisystem involvement239811003
- Rheumatoid arthritis of joint of spine781206002
- Rheumatoid arthritis of spine781206002
- Rheumatoid spondylitis781206002
- Ankylosing spondylitis co-occurrent with anterior uveitis786077003
- Hidradenitis suppurativa - pyoderma gangrenosum complex1254916008
- Hidradenitis suppurativa pyoderma gangrenosum complex1254916008
- PASS (pyoderma gangrenosum, acne, hidradenitis suppurativa, ankylosing spondylitis) syndrome1336115002
- PASS syndrome1336115002
- Pyoderma gangrenosum, acne, hidradenitis suppurativa, ankylosing spondylitis syndrome1336115002
Frequently Asked Questions
What is ICD-10 code M45.9?
ICD-10-CM code M45.9 represents "Ankylosing spondylitis of unspecified sites in spine". It is a billable/specific code that can be used on a claim.
Is M45.9 a billable code?
Yes, M45.9 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is M45.9 in?
M45.9 is in Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue (codes M00-M99).
What codes cannot be used with M45.9?
M45.9 has Excludes1 notes indicating codes that cannot be used together with it, including: arthropathy in Reiter's disease (M02.3-); juvenile (ankylosing) spondylitis (M08.1).
What SNOMED CT codes does M45.9 map to?
M45.9 maps to 7 SNOMED CT concepts: 9631008, 786077003, 239811003, 239810002, 1254916008, and 2 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for M45.9?
M45.9 is linked to 1 UMLS Concept Unique Identifier: C2895253. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.