ICD-10-CM 2027
ICD-10 code for Algoneurodystrophy
From the official ICD-10-CM alphabetic index entry “Algoneurodystrophy”. Page updated September 29, 2026.
About coding Algoneurodystrophy
The ICD-10-CM code for Algoneurodystrophy is M89.00 (Algoneurodystrophy, unspecified site). The official index lists 10 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on M89.00.
Within M89.0, choose M89.00 (unspecified site) only when documentation doesn't support a more specific option: shoulder (M89.01), upper arm (M89.02), forearm (M89.03), hand (M89.04), thigh (M89.05), lower leg (M89.06), ankle and foot (M89.07), other site (M89.08) and 1 more.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 564 (Other Musculoskeletal System and Connective Tissue Diagnoses with MCC, relative weight 1.4908), DRG 565 (Other Musculoskeletal System and Connective Tissue Diagnoses with CC, relative weight 0.9783) and DRG 566 (Other Musculoskeletal System and Connective Tissue Diagnoses without CC/MCC, relative weight 0.7378), in MDC 08 (Diseases and Disorders of the Musculoskeletal System and Connective Tissue), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific Algoneurodystrophy codes (official index)
- ankle M89.07 — Algoneurodystrophy, ankle and foot
- foot M89.07 — Algoneurodystrophy, ankle and foot
- forearm M89.03 — Algoneurodystrophy, forearm
- hand M89.04 — Algoneurodystrophy, hand
- lower leg M89.06 — Algoneurodystrophy, lower leg
- multiple sites M89.09 — Algoneurodystrophy, multiple sites
- shoulder M89.01 — Algoneurodystrophy, shoulder
- specified site NEC M89.08 — Algoneurodystrophy, other site
- thigh M89.05 — Algoneurodystrophy, thigh
- upper arm M89.02 — Algoneurodystrophy, upper arm
Common questions about Algoneurodystrophy ICD-10 codes
What is the ICD-10 code for Algoneurodystrophy?
- M89.00 — Algoneurodystrophy, unspecified site. More specific codes apply when the documentation supports them: M89.07, M89.07, M89.03, M89.04 and others below.
What is the ICD-10 code for ankle algoneurodystrophy?
- M89.07 — Algoneurodystrophy, ankle and foot (header code; choose a more specific subcode).
What is the ICD-10 code for foot algoneurodystrophy?
- M89.07 — Algoneurodystrophy, ankle and foot (header code; choose a more specific subcode).
What is the ICD-10 code for forearm algoneurodystrophy?
- M89.03 — Algoneurodystrophy, forearm (header code; choose a more specific subcode).
What is the ICD-10 code for hand algoneurodystrophy?
- M89.04 — Algoneurodystrophy, hand (header code; choose a more specific subcode).
What is the ICD-10 code for lower leg algoneurodystrophy?
- M89.06 — Algoneurodystrophy, lower leg (header code; choose a more specific subcode).
What is the ICD-10 code for multiple sites algoneurodystrophy?
- M89.09 — Algoneurodystrophy, multiple sites.
Is M89.00 billable?
- Yes. M89.00 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can M89.00 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict M89.00 as a principal diagnosis.
Is M89.00 a CC or MCC?
- No. M89.00 is neither a CC nor an MCC under MS-DRG v44.0.